I know about that, but the problem is they doing it while the work still in development which is not something you would do if you don't finished the game 1st. You can give us paid DLC, but please finish the game 1st before or else your work will be delayed more and more.
That's why there are some backlash from players who play this game and did not like the idea of releasing another DLC in 2 consecutive months (Halloween and Winter DLC). If they added another Christmas or New Year DLC again, another backlash will appear again and they will stop supporting Developers anymore.