likelihood for serious pax injuries via evac command is almost a g'teed
On a point of order, no it isn't. Minor injuries, maybe, a broken ankle even; otherwise, show me some evidence of more than very, very few serious injuries in aircraft evacuation via slides, due to the evacuation itself.
By serious I (and everyone else, I think) mean life-threatening or close to that.
Press reporting tends to class every bruise or graze as an injury or "hurt"; but even in reports like the Mail's on the
Jet2 evacuation at GLA didn't claim a "serious" injury.
I do not believe that the remote possibility of an injury to a passenger should stop a Captain from ordering an evacuation for a heartbeat. If it's needed, it's needed.