All anyone need do, is ask MV what he was doing over 4 decades ago while +ABL's SSPX and many other courageous trads were laboring against all odds to keep and hand down the faith. We know what he was doing but it's too sickening to even mention.
I could be completely wrong about this, but it could very well be that if what you say is true in regards to the length of his history of "uh, mucking about in the mudpit and cesspool," (not even going to put a name to it tonight. I am not in the mood), well, it may very well have been some early contact with the SSPX that put a bee in his bonnet and gave him a seemingly permanent axe to grind towards them. Another way of saying that he may have run into an SSPX Priest back in the day that told him about his lifestyle and he didn't like hearing about it then?
It is pure speculation on my part, but depending on what part of the US he was in at the time, I could see a situation where he might have been curious about the SSPX Mass near him, and wanted to see what they were all about. At that time though, many local parish bulletins would print "warnings," in them advising their parishioners "not to attend! Nyet!" Because of the whole "schism," thing.
Meanwhile, colorful banners and parades were popping up all over creation to bring in the celebration of puke, and very often in June, on a Sunday, and very close to the Feast of the Sacred Heart. Perhaps an SSPX chapel may have put out their own warnings against such things, and posted times for a Holy Hour of Reparation for it.
MV is in the media. That in itself is not a suitable profession for someone that worships self in the acts of puke with other men. The two things together are a really bad combination-double pride. The fact that he has his own media deal now does not really help much in that regard, but I suppose daily prayer with a bunch of his colleagues would. (You would not find that in secular media, so I could see why that would be helpful to him).
On the flip side? It is great that he changed his ways and is trying to live a chaste life now. It must be very difficult for him, and he needs lots of prayers. But maybe a less in-your-face profession or occupation would be better for him in the long run and prevent more trouble? It is a mixed bag. There are some things that he says that are true, and others that are not true. Caution is in order.