For normal operations, I completely disagree. It's rare that anyone needs to goober up a freq trying to figure out where they landed, so that's not a great example.

Callsign use is just part of disciplined radio procedures. Relying on voice recognition may work in some Podunk Unicom environment but it really has no place in professional aviation, IMO.

Lots of fatalities in commercial aviation have been the result(at least in part) of poor, undisciplined comm (Flying Tigers 66 in KL and Tenerife to name a couple).