People this will get balanced the more it's played, skill levels will plateau as they naturally do. In any other game where there is match making this is a thing when ELO is introduced initially. You start off on even with everyone else and then slowly but surely you get placed in the level where you will feel comfortable.
I agree with Clockwork that this might actually get Valve to look at their own Casual and Competetive modes and take notes from Faceit, even if that means we have to play TF2 with an external AC program like they do.
All in all this is a good opurtunity for the community and people are treating it like it's the final product on day one and trying to make predictions that are based on nothing more than "Oh but I played 1 shitty lobby and it was stacked" yeah every game has those.