Thread:SonictheHedgehog1245/@comment-26897822-20170509135722/@comment-24908786-20170521174310

Well, remember, all of Jack's allies were making a Heroic Sacrifice to help Jack, and it was only when Ashi fought off Aku's control of her and gained control of her own Aku powers that she made certain that Aku's endgame with taking out all the time portals, including the Guardian's, was a useless move now that she could use her powers to provide a time portal for Jack to use herself.

Aku's look of "Oh, crap..." made it clear he never should have awoken Ashi's powers to begin with, and now his dark future was pretty much doomed, so everyone who came to Jack's aid would end up facing a much different future without Aku's tyranny in command.