Texting being more common than calls is a pretty bad example.
Texting is more popular because it allows asynchronous communication. Calls require both participants to be connected at the same time, which is a big hassle.
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).