I agree with your intentions on writing this, as I'm sick of seeing all over the internet things like "RAWR!! THIS ROSTER SUCKZ IM NOT GONNA BUY IT!!!!" But, everyone has his or her own opinions and expectations regarding this game, just like any other game out there. This had to have been one of the- if not THE- most hyped up games to date, and as such, there will be let-downs. But, for all those let-downs, we'll all be playing and loving the game anyway, because of the ENORMOUS amount of positives that people seem to forget (remember when Snake was first announced? and Sonic? imagine if that had just been figured out NOW).
The only let downs for me- that are realistic anyway- are the Starfox characters. Don't get me wrong, I LOVE Starfox and always have, but Fox, Falco, and Wolf all seem too similar by the videos I've seen (Landmasters?). I have yet to play with them, however. But it just seems more logical to me- assuming the developers can even do this, because I'm sure all of those minds took this into account and decided not to- to put Fox, Falco, Wolf, and even a suited up Krystal all under the same character, same moveset, abilities and all, but as alternate costumes. That would leave room for a Dinosaur Planet-ized Krystal, creative staff, female character and all, and one more slot for a different character. I obviously don't know a thing about programming a game, so I can't say too much, but in that one regard, yes, I'm disappointed. Oh, and King K. Rool should have gotten a nod over Dedede, but only by a slim margin.