I didn't watch the whole thing but he's right and wrong because of situations like this
>>712692350. The broader issue is that gaming itself went mainstream and companies started chasing sales instead of earning them, this caused certain genres to fade away because companies no longer wanted to make that style of game. SE in particular was the core pillar of the JRPG genre and when they threw away the time tested traditional designs the rest of the genre dissipated. This of course doesn't mean that a company shouldn't try new things, it does mean that you don't have to throw ALL of what you already knew worked into the trash.
Also, SE specifically was putting out multiple big titles a year, and a mainline FF title on a near yearly basis. Now it takes that same company 8 years to make one game.