In fighting game, faster doesn't mean better. I do not know who came out with this thinking. Also faster means less beginner friendly, & being new fighting game player freindly is one of the objective if I remember. Street Fighter 4 delibately slow down the pace to promote more strategy, & less about who has the fastest fingers, or finger coordination skills, like their Marvel games. The Marvel games are fun, but promote more about execution than tactics.
Being too slow of course, also have its problem, as you will be able to see most moves in advance, & become a counter game, like vinilla Fight fighter 2. Every jump attack can be counter with an anti-air by reaction (unless you are in middle of a move like fireball), as the jump animation is so slow, & explain why most people use a fireball character.
The fine line, in my view, is a speed with a fine window, where you can react, but only if you are very alert, & the stategy is to have mixed up to caught the other off guard or confuse them, or make them think they can react only to be counter.
Also, while I am happy that they design for the game to be tournament-able, & they speak often about it. What concern me, is that they did not seems to talk much about the gameplay of the average players, or beginners. I do hope they also think about beginners, and have some testers that isn't evo grade, & if the game works for them.