Blizzard is far more effective at removing their player base than maximizing profits. Retail WoW going down the drain has a lot to do with this. Classic fairs better but that's pre-Activision content.
I don't see it at zero, do you?
I'd like to see that taken to court and have it challenged. What good is my ownership if I have to pay a monthly fee to use Blizzard's servers? This is the same reason I dumped Ring Doorbell in favor of Eufy because I don't want to pay a subscription fee for something that I can do myself.