Originally Posted by
Bullet Sniper
Except in real-life terms, you are comparing a tv show to its video game adaptations, which counts as a separate merchandise from the main thing. And TV is the most primary canon for franchises/universes like the Simpsons.
Look at it this way, Mario does not exactly have much continuity with each new game coming out in the main platformer series, but does that mean we count the super mario bros. cartoons and the CD-I Mario games as canon? No.