I read an article recently which ruled out +Lefebvre as the "prelate" prophesied by Our Lady at Quito ... since he didn't meet some of the prophesied requirements to be said prelate.

Uh, he has been dead for 30 years yet what Our Lady of Good Success prophesied is at least 10 years from fulfillment,  The requirement he failed to meet is still being ALIVE!!!

The Catholic Church likes certainty. Especially when it comes to that normal conduit of grace, Holy Orders.

If a priest -- or layman -- has a choice between "certain" and "doubtful", one is OBLIGATED to choose the "certain". It would be sinful to go with a doubtful matter, minister, etc. when a certain one was available.

This principle is one of the pillars and foundations of the whole Traditional Movement.

If a poor workingman, maybe a kitchen porter, is unaware through no fault of his own, say on account of relentless work, I could see no fault, but anyone who has the leisure to read on the matter has no excuse. Yet Matt Talbot, a dockworker and porter who barely had two coins to rub together managed to be better read than frankly most priests. This was a man who shared his strike pay with other workers during the 1913 Lockout. The SSPX chapel is usually certain. If a man still has a concern, it is easy enough to check whether a priest has good orders. There also in many places good priests following Bp Williamson, although the Mass might be offered in a good room in a house or hired hall or a refurbished farm shed, it is so little against perishing hereafter.