It's not about being able to do it at all, it's about getting the most out of it. Lets say low forward is 60 damage and Critical art is 350. So Ryu does that, he gets 410. But if he does 3 low shorts into Critical Art(and each low short is 20 damage) then he does 301 damage if scaling is the same as it is in SF4. That's over 100 less damage because I don't have the reactions.
Sure I can hit links and shit, but I don't have good reactions. I still struggle mightily to DP my opponents when I'm in footsie range and they randomly jump on me. I actually use to practice Ryu's low forward Super in SF4 just to see if I could do it. I never could, and I mean I wasn't close at all