Thinking back to the glory days off early 2000s wrestling, wrestlers all had a fun shtick that helped even the midcarders get over: Edge and Christians five second pose, Kurt Angles three "I"s, Godfathers Ho Train, Too Cools Dancing, Kai En Tai's "Indeed", etc. Why has this seemingly stopped, or when a wrestler does get a shtick over (Rusev day comes to mind) it's seemingly punished? Those were great ways to differentiate the midcard and get the audience hyped and playing along, and they don't really seem to bother anymore.
Because now the mentality is that it's only the writers or Brock Lesnar who are allowed to organically come up with stuff, from what I can tell. And New Day to a certain extent.