You shouldn't try to do it like Todd. You should dance your way because you are en l'air dancer.
I'm extrapolating wildly, but there may be some clues here about how Balanchine saw dancers.
When I was puzzling how to create a pas de deux on a dancer a few years ago, my rehearsal assistant said "She's an Earth dancer." I haven't checked the exact source for her idea, but my guess is the NYC teacher David Howard. She characterized dancers according to the medieval elements - Air, Fire, Earth, Water. Earth dancers were stable, didn't like to jump and did not like to be partnered.
A lot of hypothetical connections here and I know that "en l'air" isn't the same thing as "Air" - but I wonder if there's a link, at least that Balanchine divided dancers into those that were grounded and those that weren't. I wonder what he considered the opposite of an "en l'air" dancer. "Terre à terre"?