It needed more focus on CTF, inching flags, going hardout, keeping the flag alive before a return. Spawn delays killed that, lack of grens also made gameplay more predictable.
Yeah it had other alternatives like ubering heavies with meds, random crits, etc. But it really didn't replace QWTF. Cool art style, awesome promos, shite as far as sequels go though. It was a different game.
Of course a lot of people liked it so it can't have been all bad, just didn't do it for me. KZ2 and CoD4 have probably been the closest things I've come across as far as feeling goes, but even they still lack that same rush.