I do not say the following lightly. One must be wary of Fr. Pierre Roy.
He is an eloquent preacher and teacher, and gives the impression of great piety and learning. In some ways, this is certainly true.
However, in some matters, he can be quite deceptive, as those who have experience observing his behaviour as a parish priest well realize, as long as they are unbiased. He has revealed that he ceased praying the una cuм Mass when Francis was elected in 2013, yet remained with the SSPX until 2016, praying a non una cuм Mass for the entire time.
Another example. He gives Holy Communion to women immodestly dressed, and permitted a couple to live together before marriage. The Sister who is with his congregation is a single nun by herself among a group of men; no Mother Superior, or fellow sisters, which is against Catholic moral teaching and practice. One may see that she is the only sister through the News section on Fr. Roy's website:
https://www.latinmassmaritimes.org/news-events-2
This is not a judgement or condemnation of him, but merely the relation of certain facts. For those who attend his missions, it would be good for them to ask him about these things.
Let us stipulate, for the sake of argument, that all you say is true and that he is a hypocrite.
Does his hypocrisy mount a successful rebuttal of his principles? Can the subjective moral laxity of a teacher, in itself, and as probative/demonstrative agency, falsify the objective principles he teaches? The answer is no. If the principles are sound, the moral laxity is a scandal, but it cannot falsify the principles.
For example, our Lord said,
"The scribes and the Pharisees have sitten on the chair of Moses. All things therefore whatsoever they shall say to you, observe and do: but according to their works do ye not; for they say, and do not."If you know this man to be a hypocrite, pray for him, and perhaps confront him if you are in his orbit.
If you know his principles to be true, then affirm them.
The principles, I tell you,
are true, and they have a multitude of enemies. The principles themselves are as hated in this world as our Lord Jesus Christ is hated. Therefore
ad hominems are only the beginning of the persecutions to come.
Will you limit yourself to discussing the principles, or will you dig down and claw the man some more?