You don't have to call #3 a theory. Many bots were strictly screen readers that only worked with legacy graphics. Now that ROTW doesn't support legacy graphics, they are going to have to rewrite some things.
Thats not completely true
I still manage to load rotw using tinymod for low graphics
I just cannot play outside of a black screen since it cannot load graphics
But bot should be able to play using this black screen
Prob Blizz is more cautious on rotw they must have changed smthg else