Yeah, in some ways I think playable content vs cosmetics is a more functional distinction than DLC (or MTX) vs expansions. The big thing that changed is that games now will sell you visual items for bragging rights, rather than stuff for you to play.
I would suggest that not buying those is a good idea, but clearly a bunch of teens and rich people disagree with me on that one.
About damn time.
This thing is my favorite MMO by some margin and it’s not even a MMO at all.