I'm with G on this.
When you consider that figure alone, it's scary.
But ...
You'll likely get some sort of warning of impending engine failure before it drops out. (unless out of gas as G stated)
And if you consider that as soon as you begin moving the collective down, you begin to recover, or at least slow the NR decay itself. (Remember max glide is at a low RPM).
The 1.1 is to stalling the blade if you do nothing, if you get the collective moving when you notice something wrong, more likely than not you wouldn't decay to the rotor stall point.
But to let you know, you're not alone on the train of thought, it hits everyone flying robbies every so often.
Another way you could remove some of that trepidation (so to speak) is to go get some dual with a CFI, and brief for some power failures. Mine just states power failure and expects me to react accordingly.
