I dont think they have touched the Lyrics for W&K. I have noticed mike fucks up That line on the every DSP so far. So why edit it. He most likely will keep doing it. I even noticed In the first verse he fucks up a little too, especially on the "The people up top push the people down low." line.
The differences was It was a mistake on Mike and what he said, Not a technical problem. Thats where I think they editing has been introduced for, to fix those technical problems out of the bands control. Its their fault if they hit the wrong note or play the wrong key but not their fault if their instrument goes all wack on them.
But yeh thats my 2 cents