Bobs deeply threatened by First person shooters and the fp perspective in general, despite his protestations otherwise will jump on any opportunity to criticize them, even if it's petty, incorrect or totally hypocritical. Which in off itself is pretty dumb but really falls apart because his big thing is 2d platforms which where stagnant and over saturated during the 90's as 3rd persons and are potentially an evolutionary dead end.
I can relate to not liking say CoD but when something like Skyrim hoves in view-it's pretty clear Bob's a sperg.