DrHappinessI think their main critique was that they were not transparent about sponsoring (or incentivising) content creators to speak good things about their platform.
Definitely incentivising, not sponsoring.
Nobody was actually paid specifically to say good things about FACEIT (except maybe scrap.tf but I'm talking in terms of "influencers"). However, the number of views you can get by streaming in faceit matches is admittedly hilarious and I've been abusing this, but only because I genuinely like the idea of a middleground between casual and comp. I can finally play Demoknight in a somewhat serious manner without having to trouble myself with competitive formats nor farm bad players in Casual mode over and over.
Zesty pointed out the free stuff that was delivered to these guys. I will admit that I was randomly offered free stuff from them, but I was never obligated to do anything as a return. I assume this is also the case for everyone else involved with this. It appears to be more of a tactic to get these "influencers" to like FACEIT, as opposed to directly saying "we will pay you X if you say that it's good in a video".
This does have implications when it comes to bias, yes. But I dislike the notion that FACEIT forced us to say good things. In fact, a lot of these guys are quite critical of the match balancing, which they do need to improve.
FACEIT is planning on adding a server browser type thing with no leaving penalties as a separate option so I'm not sure what all the fuss is about with some of these guys ranting as if things will not improve. If you're a casual player who wants regular community servers then just wait until FACEIT comes out with their own version of that. I think a lot of the complaints are coming from the fact that not everyone even knows that this is being planned.