When did I mention Disney???? This is straight up from the PT and CT. “Into exile I must go. Failed I have.” That’s as clear as it gets. He don’t want any part of Sidious. You can razzle and dazzle all you want in your head canon….the fact remains that Yoda doesn’t want any part of Sidious. Not after the Senate fight nor anytime in the future nor ever. News flash: He’s already the Emperor when they fought….he has all those protection and Yoda still got in. That excuse of Palpatine having guards is moot. Because Yoda and Obi-Wan was expecting for Luke to confront Vader and his Emperor. Hey what happened to his guards???? Magic!! They don’t matter!!! To fit your narrative right??