If we're basing it on the fact that the player had an opportunity to respond to the no ball call, then I understand why cricket is where it's at with technology. Again, there is not a batsman in the world that can stand with his (if it's a her, I could see it) hand on heart and say they've reacted to a no ball from anyone above medium pace. And very few for spinners. You're just not attuned to it. Noise can be anything. What if you reacted to a no call, only for it to be a crowd distraction? It does not happen.
Sorry, that explanation ain't cutting it either.
If you've got a rule for an out decision, you have it for a not out decision. Or again, we favour batsmen. We're only ever taking dismissals off bowlers and never giving the right for them to receive them. More horse excrement. Realisti cally, he could have checked upstairs the same way he would/could have if he'd called it a fair ball but knew it was close. Ala Hobart 2011.
Actually hold on - that DID happen in Hobart 2011. Lyon was bowled, they went upstairs. The right decision was made, we all accepted it. So why the **** didn't it happen today? EDIT - sorry, too worked up and realised that's a different situation to today. But it shouldn't be.