If Fr. Francis isn't the first to want to prove his Consecrator's validity, or doesn't understand why we Traditional Catholics are concerned with such, then he obviously received an inferior Seminary training, and perhaps it's best that we collectively allocate this priest to deathbeds and emergencies only (when no other priest is available)...
As Mithrandylan also wisely pointed out, validity is the most important concern. But even if that were proven (which it hasn't been), there is still the huge elephant in the room -- this priest's foolish choice of OLMC "seminary" for his priestly training.
And don't give me, "Come on, what choice did he have?"
If he had opted to self-study with a pile of pre-Vatican II Catholic books (the Summa, Denzinger, The Spiritual Life by Fr. Tanqueray, moral theology, all the classics written by saints, etc.) and did an apprenticeship with some bishop or priest, then I would have WAY more respect for his judgement, intellect, and wisdom.
But OLMC? Seriously? Who gives a place like that respect enough to spend several years there? It's a complete joke to anyone with a brain. I mean, this man was bossed around by Pablo for years. He drank the Pfeifferville Kool-aid for years. And he stayed for a long time! He thought it was appropriate and fine for an apostate, superstitious man (with no seminary or theological training whatsoever) to regularly be in charge of a seminary.
That speaks to a certain deficiency.
To give JUST ONE example of Pfeifferville Kool-aid which any normal intellect would gag on: "Bishop Williamson and Bishop Zendejas are bad. But Ambrose Moran is good!" and let's not forget, "All ye true Traditional Catholics: you must only attend Mass by Fr. Pfeiffer, Fr. Hewko, or a priest on good terms with us. After all, we ARE the Church!" I don't care if he actually said those very words; that is precisely his doctrine, proven by his countless words and actions.