I agree techs and eyeballs are often 'off' but I'd guess most techs are slow to respond and a lot of guys are actually hitting a higher rpm for a brief while.
That’s possible, but I see more needle whip than anything. It’s not as bad as it used to be, but it’s still there, especially when you free Rev the engine with no load on it. They don’t RPM like that when they have a load on them.