No, CM spun it that way, but it does not look like Father Duverger was grooming her in any way.  He never so much as touched her, and for the longest time he wouldn't even respond to her e-mail (which she complained about).  He asked some bizarre questions in spiritual direction ... which may have been motivated by impure curiosity, or perhaps came from an imbalanced mind, where he fancied himself some kind of psychologist who would "cure" her of her past trauma.  But that's ALL that happened between them.  And I apologize for having to be blunt, but she's not a particularly attractive woman.  I'm sure Father Duverger could have found other options if that's what he was after.

And yet CM smeared him as a "threat to children" ... when he had never acted inappropriately around children.  Men who are interested in women tend not to be interested in children.  So Father Duverger would have a real case for slander, except I think the SSPX would not want all the extra publicity.

Another one who was repeatedly smeared was Father Kenneth Novak, where he was characterized as a home-wrecker, seducing women from their husbands, visiting them "at all hours of the night," etc. ... but there's absolutely zero evidence that there was any wrongdoing of the nature that was implied.

I watched the interview when its first came out, and I thought he was trying to groom her. If what she says is true. But I agree it’s a stretch to say then Duverger preys on children.

I think that's what SHE was trying to convey, and what CM was trying to say, but actually write down the facts, and he basically asked some inappropriate questions of her about her past.  But that was IT.  No touching, no propositions or flattery or "coming on" to her, nothing that suggested he had any kind of impure interest in her.  Could he have been indulging an impure curiosity?  Perhaps.  But the way she described it, he was adamant that he could help fix the trauma she had experienced in the past.  He sounded like an over-zealous would-be psychologist more than a groomer.  She expressed how frustrated she was because he wouldn't return her e-mails for a very long time.  Does that sound like grooming to you, when he was not even returning her messages?

And the worst statement about Fr. Duverger was reported by Jassy second-hand, a bizarre incident, but then it came out that the girl who told Jassy about it was known to have psychological issues and wasn't even believed by her own family.

Did Fr Duverger do other things to other women that make him suspect?  Perhaps, but this one here doesn't pass any kind of smell test.

That reminds me of the whole Fr. Arzuaga episode, where this woman repeatedly let him just walk into her apartment and rape her?  Zero credibility there.  Did Arzuaga commit grave sins against chastity and violate his vows?  I believe he admited that.  But it doesn't pass the smell test of being non-consensual.

Here to put the "threat to children" issue more in focus, from a LifeSite article June 15, 2021

....Wegner apparently told Jacas that Duverger, who by that point had been re-assigned to the SSPX’s St. Thomas More priory in Sanford, Florida, was “restricted on doing Confessions and spiritual direction with women.” According to Jacas, he also said the restrictions “are so severe for him that he literally says Mass and he has to run and hide afterwards because if he is even seen talking to a woman, he's done.”
To that, Jacas says she responded, “Okay, well, what about the children?” And she says Wegner replied, “well, what proof do you have that you should be concerned about children?”
Jacas said she had two concerns: “One, if I were a mother of any of those children sending my kids those camps or that school, I would want to know if these reports were made against him. Two, it it seems like he targeted sɛҳuąƖ abuse victims, which are very vulnerable to being confused…and children are vulnerable also.”
Wegner allegedly said, “I will look into it and see if there's anything more we can do for the children's safety.”
Jacas said that she became even more upset after learning Duverger was placed in charge of running camps for kids and was tasked with leading a pilgrimage that included women on it. He was also tasked with helping at the school in Florida. Jacas told LifeSite that she believed Fr. Wegner misled her.
“I was willing to accept Fr. Wegner’s decisions up until the point I found out he was lying to me. Fr. Durverger was working with an all female faculty and wanted to plan a private pilgrimage with just him and them. I was told specifically that Fr. Duverger wasn't even allowed to be seen with a woman, yet he worked with a female faculty and they were advertising a pilgrimage with him.”
“It was not my demands but the SSPX’s own protocols that they publicly claim to follow that was [sic] not being followed,” she said.
Jacas also said that she spoke with Father Marc Vernoy, a priest stationed at the St. Thomas More priory with Fr. Duverger. “I end up saying [to him] that the only thing that would ease my conscience would be for him to inform all the parents about the reports or to remove Father Duverger from a position in which he could be hurting people.” Neither of those things happened, she said.
Jacas eventually contacted Father Davide Pagliarani, the Superior General of the SSPX, via email in early 2020 to express concern about Fr. Duverger’s ministry. Pagliarani emailed her back saying the U.S. District is in charge of Duverger and that the situation was in Fr. Wegner’s hands.... (all bold letters added)

SSPX priest planning defamation lawsuit against Church Militant, lawyer says - LifeSite (lifesitenews.com)