Taven's ending says that the surge of power from Blaze made every kombatant within the crater more powerful than ever before. However, that doesn't mean it made each one of them as powerful as in their individual endings. It would rather divide the power among them.

But of course we don't know how MKA ended. Perhaps the next game will answer that. Unless they will decide to leave or retcon the whole Armageddon story.

Armageddon is fun to play, but the story isn't even interesting. i hope they retcon it and make the new MK MK7.