They care enough to keep the servers running and to let the community continue to work on and improve their game. I'd say that's pretty damn great and more than I'd ever expect from a 5 (almost 6) year old game.
I don't know, the bottom line for me is that they had the game in a relatively unbalanced state, then fucked off and said "we can't spare the developmental effort to balance this game any longer, so how about you guys do the work for us?"
Case in point is when you buy a car, you paid the dealership or whatever so you take it and drive it, you don't have to thank them so the damn thing keeps running, get the hell out with that logic.
That's a pretty bad analogy... a REALLY bad analogy. You literally have to constantly pay to get a car serviced to keep it running. You pay up front for the car (which in your case is your 200 dollars), then you have to pay for replacement tires, oil changes, tire rotations, general servicing, etc. I don't know how you could possibly think buying and maintaining a car is LESS of a "product as a service" than anything else is. You basically just named the quintessential example...
Dont forget about the silent majority. I know alot of people who, instead of being vocal and/or complaining, will just leave quietly if they dont like a change. Dont quote me on this, but from my experience, I would say the game's population is currently being held up by new players from china.
He's arguing the silent majority is relatively satisfied with the game, and you're arguing the silent majority is not. I mean, I also know a lot of people that enjoy the game, and instead of being vocal and/or expressing their satisfaction, will just quietly continue playing. These things are completely anecdotal. The only actual measure we have is player numbers which, without any other context, indicate a constant playerbase. As you recognized, it could be artifical inflation from chinese players, but that supposition is also based on anecdotal evidence. Based on anyone's best guess, the player base seems relatively stable (and not just constant in number).