Meh, I'm not so sure. CDPR sure wants to keep all players, but if the new players outnumber the leaving ones, they would say they are doing the right thing, even though some old beta players may leave in the process. They base their decissions in statistics and results, as any other company.
Proof is the Mulligan Livestream. They said that, despite all the feedback on coin flip, their statistics show that matches are won more often by players on blue coin, so they are not changing it at all. Who would have guessed.
So, we may have the impression that the game is going downhill because the veteran players are more active in the forums and they are giving negative feedback, while in game, the playerbase is raising in numbers (I don't know, only CDPR does). And maybe we complain about long queues because only old players are in higher ranks, while new players are still climbimg up. We'll see soon enough I guess.