It is true that actually paying these artists would require a lot of restructuring- this was not a small group, it was dozens and dozens of folks. It cannot be overstated: the Flea's entire model depended on unpaid labor. The Bats acting company members (unpaid for their talent, which was utilized in nearly every production put on) were also required to put in unpaid work hours in front of house, administrative, or other functions that, in nearly every other professional theater company of this size and notoriety, would be paid, as well.
But we don't really know what they're planning to do. All they have done publicly thus far is get rid of the programs and dismiss all of those involved in them. The statements they've issued have been extremely vague about future plans. Unceremoniously kicking everyone to the curb via email with no grander vision to go along with it- after promising the inclusion of the artists in these discussions- was just another unforced error that feels of a part with their exploitative practices.
There is very little good will left toward the Flea, which absolutely colors the response to their actions here. But they have done very little to earn good will back.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."