Because AI art is shit at this kind of thing. Not incapable of, just absurdly fiddly to get obedience from. It’ll get you 75% of the way there, and then you actually need to know how to edit an image, which is where it lets you down.
Go ahead and try generating images of a family during benediction wearing ear bandages and you’ll find it really struggles with getting that last part right because it’s not typical subject matter.
Why is this lengthy process preferable to using ublock on Firefox?