Improvisation without representation is definitely authorized in this club, though I don’t quite know how it’s supposed to be accomplished (at least without some corporeal manifestation hanging around on this mechanical rotating clothes rack we call the universe).
First off, you’re supposed to “yes, and” the opposition into submission as often as possible, which typically would require a physical body in space and time. However, perhaps a physical body needn’t be required if we piped a nice [tinny] audio stream into the room as the live interaction winds itself down.
But that all goes without stating the obvious: if the instigator of improvisational inquiry has no chunky terrestrial body of which to speak, then why should the foil of the piece remain a solid entity? That just puts the burden on them, don’t you see? Having all of those internal organs thinly covered by what’s basically just a fleshy layer of napkins (and not the two-ply kind)… it’s dangerous! I won’t stand for reckless endangerment in the name of creativity.