From tidbits of (limited) info and then applying logic based on absolutely nothing I came to the following conclusion:
Pearl Abyss wants the Chinese server, it’s in their neck of the woods and players from China are completely fine with p2w and the whole stuff that comes with it
the Chinese server is horribly outdated, it’s lagging WAY behind TQ in terms of updates to a point where it’s simply not servicable
only buying Serenity doesn’t ensure long term viability because if CCP decides, for whatever reason, to stop doing updates for it it goes back to the shitter again. This would be a bad investment and would in turn make Chinese players not invest too much into the game
the only way to ensure that Serenity gets the long term attention and updates it needs, is to buy the whole of CCP so Pearl Abyss now controls it.
Tl;DR CCP was bought for the chinese market where they can endulge themselves is massive p2w and whatever else they enjoy, they bought CCP (and thus TQ) because they had to, good chance they’ll leave us be and let us go on with how “us western players” view p2w.
Then again, I might be wrong and in a few months we can buy the new cat race characters that start with 100 mil SP.