He had no business wrestling Taker at Mania and giving him his worst Mania match. Imagine how great it would've been if Taker had wrestled Macho Man or Warrior (not a great wrestler but better than Gonzales) or someone similar instead.
Taker should've faced guys like Austin, Bret Hart, Mankind, Lesnar, Angle at Mania since he had good feuds/ good matches at other PPV's with them, instead of nobodies like Gonzales, Mark Henry, A-Train, Bundy and Big Bossman.