If you're getting something else, then I think it's quite apparent that you are not doing the motion properly. Whether it was a good idea to change the way Street Fighter reads inputs is another matter entirely. The game reads inputs the same way every single time. If you aren't getting the move you want, it is always user error.
Anyways, to get back to whatever topic is left... People like to pretend execution ain't real. As if at some point it disappears all together. If it does, I haven't seen it. Specials moves will always take time to perform, there will always be room for error when pushing multiple buttons, and links will always have some amount of executional risk. And this is where a lot of the old SF players are coming from. Back when the game was a machine with one joystick and six buttons for each player. That was the game as intended, with whatever execution hurdles came with it. This is why a lot of old SF players oppose the button macros. But now that EVO has gone ahead and allowed all in-game macros, it has effectively made it the standard. So now while you're holding down your one trigger button, to charge up your Turn Around Punch, all they can do is call you a scrub.
So.. I think if BB tournaments allow button macros, they should also allow move shortcuts. Why be half assed? Where is you all's conviction?