Another thing I have to say about match-ups:
People who pick their character or their team just because it is a good match-up against their opponent suck. This is another reason why I don't really care for match-ups.
If their character is a better match-up against my character, then I'll just have to find a better way to outdo his dude. I think that makes you a better player than just knowing match-ups.
If I play 4 characters well as mains (which I actually intend to do for this game), and I think my 4th character might do better against someone then one in my "main" three, then damn right I'm gonna switch it. It shouldn't be a problem if you're actually well versed in characters rather than only having a basic gamestyle and then trying to counter pick.
Saiki right now is on the outside looking in of my main team, but I'm sure he'll have better luck against certain teams than maybe King would. If I think that's the case, I will indeed give Saiki the nod over King.
As for using the lack of counter picking as a reason for not caring about matchups, that's BS. If anything, that makes it MORE important to know matchups. If a character you know loses a matchup even barely, but you still don't know how to approach the matchup itself to help your odds of winning, it's only going to make the match THAT much harder on you.