I mean an official blacklisting would hardly make a difference to the amount of offers flooding in...
That’s something for the Lindsay Lohan’s of the world: properly famous, with heaps of potential at one time but intensely troubled and impossible to work with by many accounts.
Tanya doesn’t factor on the radar of anyone with that sort of power( and someone like Richard Curtis sees her as a friend of his daughter not an actor lets be honest). It’s not dislike, or even scorn but total indifference about someone they don’t even know exists.