Can't watch the video right now, but honestly I agree.
My friends and I play Commander, and I enjoy a little hijinks, but with the newer decks I feel like I just need to sit and wait 10 minutes for their turn to finish, and at the end I'm like "So... am I dead or what?"
And of course, the same applies to them with my deck. Synergy is nice and all, but it's nigh-on impossible to follow these days.