I’m sure the retcon and explanation would be lauded and praised by some die-hards, but movies that make hundreds of millions at the box office aren’t carried by die-hards.
It’s the kind of plot device that Marvel is tiptoeing into after multiple films, and a concept that hasn’t been a part of Star Wars movies, ever, in its decades-long existence.
I think this explanation would be just too much for the masses to embrace, especially when Disney could just ignore the sequel trilogy for some time and jump ahead before or after it and tell stories elsewhere.