It's kind of funny how Extra Credits believe the exact opposite of what MovieBob believes.
(The Consoles are the new coin-op episode)
I agree with them more; as gaming becomes more accessible, there will be less reason to invest in a machine solely dedicated to gaming, which is why the new PS4 has so many social features; Sony knows that they need more to sell the console not just as a gaming platform(same with the PS3:Blu-Ray, and Netflix-style apps on consoles atm).
Personally, whilst I still think that MovieBob is an intelligent guy, he should stay away from these kind of topics.
The only reason for why he made the "PC Gaming Is Dead" video seems to be spite; everyone else would just ignore it, but no, he just decided to pour gasoline onto an already intense flame-war.
He could've just ignored the issue, but he didn't.
Also, ALL kickstarted games(the famous ones, Torment, etc.) will be on the PC; their funding alone shows great demand, and no one is bitching that they're not available on console, since those kind of gamers just don't care about the genres that PC dominates.
If one were to hypothesize, then I think that "Civ-style god games & Simulations" would die out if PC gaming ceased to exist, as there is no market for them in the console scene.
Also, AoE online failed and I doubt that Casual gamers would be interested in deep strategy games. That, and the fact that "social games" are crap, and are barely classified as games, little more than "cow-clickers".