Metroid Prime Hunters sucked balls and looked like shit too (minus the cutscenes).
I somewhat agree, but the problems most people had with Hunters (from what I've read) were the stylus controls and the linearity and repetition. The first problem could easily be fixed with a second analog pad, and the second problem has nothing to do with the technical power (and everything to do with poor design).
Personally, I thought the game looked great for the hardware it was on, but to each their own. Regardless of how bad it looked or not though, that's a poor argument for why such a game couldn't work on hardware as exponentially more powerful as the 3DS, IMO.