The fact is that the controls loads that are produced by stall are those that cause jack stall, and it does NOT take a wild maneuver to cause them, all it takes is some degree of blade stall. At high weight and high density altitude, the maneuver required can be shockingly small, and there is little or no warning.
I repeat what I have posted earlier: A control system is supposed to control, not lock up. Jack stall is a design problem that is only experienced in ONE manufacturer's production helicopters, because all the other manufacturers make their servos powerful enough.
Like LTE, jack stall makes pilots need to fear their machines, and like LTE, jack stall is not a condition that need be suffered by pilots anymore.