It feels like they've done nothing but spread rumors and straight lies. They've trained the average dumbass gamer to hate anything that's related to a rhythm game that doesn't devote itself entirely to real guitar over the last couple years. Blahblahblah it's a dead genre, blahblahblah Harmonix was technically only acquired for a few bucks, blahblahblah oversaturation, etc.
The hate for Rock Band: Blitz is truly disheartening. Something different from the modern era of rhythm games, but that's not enough. We all need to conform and buy all the Power Gigs and Rocksmiths
Or maybe it's just me reading YouTube comments. That's where most of the hate is ¯\_(ツ)_/¯