i totally agree with this view - in fact, I already use Viola Spolin's 'Theater and Improvisational games' toolkit for teaching tracking, group connection, one-mindedness, outside of the storyjam thing. In fact, I've dragged my feet using it for storyjams for various reasons.
At Tom Brown Jr.'s Tracker School, he uses very similar games/exercises as Viola Spolin to create the single 'scout mind' of a group of scouts in the apache tradition. I assume his apache mentor encouraged these kinds of games and exercises.
In a sense, it shouldn't surprise me I guess; humans work much the same the world over, and what creates one-mindedness will tend to do it wherever people use it, on a very basic human level.
This goes back to issues of family and land...if we feel detached and rational when talking about these connections, rather than feeling our hearts torn from our chests and a knife's edge at our nuts (or pick your sensitive zone...speaking from my own body here), then rewilding and a human future just ain't gonna happen. So we need experiential things that make us go 'gack!' when we think of supporting whom we love (much a like a mom who squirmed all through a scene in a movie with a baby crying, while i just sat there. finally she said 'will somebody pick up that baby', to the movie! i have the ability to ignore the connection empathetically, while supporting it intellectually - 'oh yes! lovely. yes, we should support babies.' for her, she has no choice. why? the visceral first-person experiential improv game of motherhood.)
We write words for a certain purpose, and I (of course!) value that purpose highly. And, a time comes to back up our mouth with real money, so to speak, and get experiential. get 'real', so to speak.
we must jam. we have to jam, in as many ways, and for as many reasons, as possible.