I went back to the PC version after playing BO4 and it was all me and my friends could talk about. Everything just looks so bland and boring and ugly.
The game is now out on 4 different platforms with content being released pretty regularly. Guessing the money is being used to pay overhead and salaries to support this type of game/game service
It has a higher skill ceiling in my opinion. You really need to be a good player to win.
I would imagine it is/was used to set up. It is there first successful game and they're not established like Activision. Plus development over 3 plus systems must run them a bit thin.