The increased feedback would be bad. Why do you think nothing is left from classic? People did not want it.
They didn't want to walk until level 40.
They didn't want to grind one dungeon 672 times for a .5 tier upgrade
They didn't want to buff every 5 minutes in a raid.
The list goes on, you've seen them all.
TL;DR: Everything that is gone from Vanilla/TBC/Wrath is due to player feedback. What you're suggesting has already been in place for years.