Funny thread.
I guess part of the split is related to ease of picking up foreign languages. METAFese is a bit like any other non-native language. Some just get it easier than others. Some find it not worth the effort. The long-timers among us probably remember the brouhaha over the change from SA and FT to METAR and TAF. "Having finally become more or less comfortable with one foreign language, you expect me to learn another!!?"
Personally, I like the code because I find the condensed version faster and easier to read than the long version (except I like the local times in some translation).
OTOH, thank goodness modern GPS units identify navaids so I don't have to read those tiny dots and dashes.