Yes, it is necessary to wait for legal stuff. Banning things for "ethical" reasons is a sure way of opening a can of worms to arbitrarily ban stuff for vague reasons.
And when I look at some fan games, how ethical is it to make a game about some one elses ip? How ethical is it to put share to itch to zero? How ethical is it to put drm into your game?
To me, using an AI is not unethical. It depends what you do with it. Claiming you created the assets by other means would be unethical. While some do belittle it, but using an AI is still work. And when compared to someone taking photos, there is a similarity. They did not paint the picture, they just chose where to point the camera and what pictures to use and maybe arranged the setup. So if I were to go to a ren fair and took pictures of some swords and run them through a pixel filter to create assets, how ist that any better or worse than using an AI? There is still editing and chosing what picture to use. Photographers even have copyright about their pictures. For what? Pressing the button themselves? This goes of course into philosophy territory a bit, but I see many similarities how far away from painting both are (taking photos and using an AI and calling both art/work)
Copying someones work would be unethical and often illegal, but this is true for other ways like tracing and old fashioned plagiarism too. Same for those fake celebrity pictures. It does not make it more or less unethical, if I used photoshop to show someone in prisoner clothes. Or paint them on canvas for that matter.
The thing is, what is clear to some is clear to others as well, but with the opposite opinion. It is especially not clear enough to blanket ban all AI. You at least named specific projects. But what if I used one those things and actually did train them with stuff I have permission or even my own art? Would this suddenly be allowed, if there were an "AI" ban? Or even a ban on specific tools that could be used in a different manner?
What if I used AI to have a reference and I traced that? Or heavily edited it in photoshop?