That's fair - comparing calls to texts is not apples to apples. But I think the issue is deeper than live vs async: voicemail is fully asynchronous, and it is by far the least popular of the three.

I don't think your objection diminishes my main argument, which is that many forms of communication don't receive any optimization from VR - including forms that the VR crowd seems to believe will be revolutionized (e.g. wildermuthn's whiteboard example).

I think part of it's due to the perceived privacy i.e you can 'text' at anytime without bringing any attention from surroundings, but that's not possible with 'calls' when you are in the office or when surrounded with friends/parents/relatives etc.