I might agree a little, but then again, I have not played either with or against a Dodonna yet (only had 1 pulled in 3 release sealed tourneys this weekend). As I've said previously, part of me doesn't like the fact that the Seps are no longer the only ones with this trick, but each of the different factions that it's been given to will utilize it in completely different ways, and I think that is cool.
As an example though, slow-players, or games going to time are NOT about the pieces being played, IMO. It's about the type of player you are, and how well you know the pieces. At the release event yesterday, Madman and I battled out a HARD game that went about 9-10 rounds before I finally lost. Whereas, at the table right next to us, two other guys BARELY even got 5 rounds in, and their 5th round started literally 30 seconds before time was called (we were playing 50 minute rounds). None of these squads had any tempo control, but the slower guys, one had Nyna and Talon, and the other had Nyna and Lumiya. They're both just VERY competitive players, and very cautious. To top it off, neither of them knew a whole lot about the set to this point, and were still trying to figure out what all the various pieces do.
And this is basically what I see week-in and week-out, and at GenCon last year. 9 out of the 10 games against my buddy James at our LGS go to time simply because he doesn't know the pieces that I am playing well enough, and he isn't able to anticipate everything I might do. So it takes him much longer to decide his strategies and moves, and often I still end up beating him.
It's funny, because it's a HUGE testament to how much difference it makes to be involved with the greater world-wide community online, because James is pretty much oblivious to any of the online community. And that's why, barring the stupid dice, I typically beat him most games, simply because I know the game better, and know the pieces better, from all the discussion around here. And I pretty much saw the same stuff at GenCon last year. The people who consistently played slow or lost terribly quick to me seemed to know less about both my squad and their own, and so were at a vast disadvantage when it came to the amount of time required to play the squad.