I totally understand what you are saying. The fashion thing isn't for me and I do find it to be superficial in a way that I would not have said was characteristic of her. I have always admired her because she somehow stood out above just being a celebrity. A lot of the things she has done recently have been very cliched to a degree it feels like she is becoming a parody of herself.
As I have said several times already though, I think she is still on a journey following the few terrible years she had and still seems to be trying to cope with it all. This is not a reinvention but a phase on the way to where she is going. That is why I have stuck in there, I understand why she is trying new things. I just wish there was some more structure to her career for me to follow as a fan. It is what we were accustomed to after all.
It is great if she can have some fun with fashion. But she is a singer and that is still what she does best and I for one miss that. It is not wrong to feel like that and if you are totally ok with everything going on then that is great for you, but not everyone feels that way.