So you’re against unlocking things through play? Stay away from the rouge-like genre then, you would hate it.

Just about any game that is designed to be played more than once (i.e. not story games like the Witcher) will have some sort of in-game rewards to keep it fresh. Like the Binding of Isaac where you have over a thousand different items to unlock through gameplay. But live service games need a way to keep their game fresh for even longer than most. Themed unlockable cosmetics are a great way to do it. As long as they’re not capitalizing on FOMO, I do not see any problem with it.