People who care about customization don't literally freaking log in just to look at their character. I'm really getting tired of this strawman
It's just that their character informs their entire gameplay experience. You literally cannot do any content in the game without having your character present. It makes sense, at least to me, to at least want to enjoy the company of that character / want the ability to identify with that character.

It's like.. paying to go to a themepark but being told you have to wear a horrible, itchy wool body suit while you're there. And when asking if you could maybe wear a tshirt and jeans like some other guests get to someone goes "Lul you want to pay $40 to wear a tshirt???"