Bailamos, "everyone" simply is not everyone. A certain small number seems to be louder than the rest. You are right, and be sure AT is as codified as any other tango style. The only difference is, that in your world the focus lies from the beginning on the performance aspect, while the social dancing skills often (all but you, of course) are a byproduct. And of course also in the AT world do exist competition-orientated studios. But actually there are no stage tango followers posting at DF. Have they been (by chance) frozen out, or never been around? Don´t know!