Ah, but my point was that (for me) flash-fiction without zing isn't worth reading - whether it was worth writing is entirely up to the author.
Besides, all stories fit the "beginning, middle, end" model, it doesn't help you with any particular story form. Note, too, that I wasn't talking about a "zing ending", that might be nice, but for flash-fiction to work well (for me) it must have zing from start to finish. Short stories may have room to relax a bit, flash-fiction doesn't.