The problem with most (if not all) internet personalities whose gimmick is to roast video-games, is that they know very little about videogames. AVGN, for instance, is what most would call, a casual gamer. They are only knowlegable enough on things they grew up with (certain consoles or games) and they are also completely clueless when it comes to technical stuff. In fact, every game collector channel, with those massive collections in the background, the endless shelves filled with games, the rooms full of console boxes of various different packs, limited editions, etc, are clueless when it comes to technical stuff.
The channels who know their stuff are mostly the positive ones who are afraid to use too much negativity even on shit games. Like Digital Foundry, for instance.