It’s not dying, far from it. Peak player count around 1680000. That’s just at that particular time. Throughout the day there are many many more unique players than that. If everyone of that 1680000 played 24hrs a day 7 days a week then the figures would be worrying but clearly people dont play every hour or even every day so how many unique players are there still playing? 1 million, 2 million, more? Probably.
I personally don’t mind the DLCs being spread apart, gives more time to play them a, like most (all) people don’t play every minute of every hour of every day.