To be more specific, I don't find anything inherently wrong with 'Suite, Suite Dino Revenge' OUT OF CONTEXT ... but the final 90 seconds feel tonally out of place when taking into account how the movie ends.

I'm not entirely sure what word to describe the tone of the music at the final 90 seconds of the Suite.
Maybe GLOOMY is the word I'm looking for.

I personally prefer that the tone of a movie's End Credits Suite reflect/correspond with the tone of the movie's ending ... and in my view, 'Suite, Suite Dino Revenge' ending does not match up with the movie's ending at all.

If the movie's ending was bittersweet (or even some kind of 'downer ending'), then the Suite's final 90 seconds would probably make more sense. But since the movie ends with all the heroes triumphing and moving with their perfectly happy lives (the T-Rex doesn't even die after everything it's gone through in the saga), the Suite's gloomy and sorrowful conclusion comes off as just plain weird and, like I said, out of place.