You do if you want to understand the argument they propose, since a video is how it's presented. Just dismissing it outright without inquiring as to why they say this, and how they support it, isn't being objective and I have no reason to continue responding to you on this subject until you do.
I've watched one of their videos before. I'm dismissing it because you can pick up any book which quotes the Church Fathers/Scripture on the Apocalypse and they are WAY off. The Diamonds are arguing JP2 based on symbolism and figurative language. But the Church Fathers tells us, infallibly, which parts of the Apocalypse will happen LITERALLY and which are figurative. The Diamonds are way off.
For all we know, Abp. Lefebvre and Bp. de Castro Mayer could have been the prophesied two witnesses, who died spiritually by initially accepting JPII's proposal for the consecrations, but then rose again by defying them. God only knows.
Yes, they could have been prefigurements of the 2 witnesses but they are not the ACTUAL 2 witnesses. Go read scripture. It tells us that the 2 witnesses will preach all over the world, work miracles, be martyred in the streets of jerusalem/rome (I can't remember) and lie there 3 days for all the world to see. Then God will resurrect them, people will convert and on the story goes.
This is what will ACTUALLY happen. This is not symbolism. Has this happened yet? No. Therefore...JP2 isn't the antichrist nor are +ABL/+Meyer the witnesses. The Diamonds are making the complex topic of Apocalypse MORE complex
by ignoring the few literal facts that the Church has given us.