The campy/goofy Superagent style before gave it promise. It left room for guns, weaponry, and gadgets with unbelievable gimmicks that would be fun to use. So in an effort to avoid looking like TF2, they ended up looking like everything else.
Considering Insomniac Games's past record of Spyro and Ratchet&Clank, and considering EA's record of producing abortions, it may not have been Insomniac's decision to stray from their trend. Perhaps it's because EA wants the game to reach more mass-market appeal.
Regardless, all the people that got interested in the game from the refreshing original trailer seem to be turned away. It'll fade into mediocrity.