Top quality presentation from the Dimond Brothers.  Not only do they present the irrefutable arguments of St. Gregory of Nyssa for the Filioque, but they expose the schismatic heretics as liars and frauds and deceivers.  I also like the way that they call a spade a spade, calling them out as heretics who are outside the Church.  It's refreshing after decades of the Novus Ordites treating them as if they were just a different "school of thought" within the "Church of Christ" and thereby legitimizing their pernicious heresies that are causing the ruination of souls.  If there's one thing that's common among the Church Fathers, it's the grievousness of heresy.  In the Modernist framework of subjectivization, heresy is "no big deal", just a differing opinion among our "separated brethren".

And the complete irony is that a lot of new Orthodox converts are former Protestants. They read from the Church Fathers and realize that there was a Christian church before Martin Luther farted, but ignore the stuff about the Pope. So they leave a disheveled mess... To join another disheveled mess. There are some that do convert a third time to Catholicism, but that's rare.

There are actually various Trad Catholics who have given up on the papacy and just went Orthodox, so I'm pretty sure that's what prompted the Dimond Brothers to make these anti-EO videos.

I think that's part of it, I think the other part is to debate Jay Dyer and refute his points without having a debate with him since Jay Dyer refused to debate with him.  I noticed they started in on the Eastern Unorthodox material after Dyers refusal.  In a way we should thank Jay Dyer for all the anti-Eastern Unorthodox the Dimonds are producing.