Not only is that cr*p it doesn't even make any sense. You are arguing for ZERO CONTROL over a controlled approach to the application of force. Like THAT makes sense. Who cares if you stuff a torque wrench? (which you're not actually going to do). Torque wrenches are a hell of a lot cheaper to replace than a cylinder head.
Alright, then I'll bite. At what point is the safe torque value (Nominal value sought) for the safe removal of a spark plug?
Without ego my hands have a very good idea of just how much torque I'm applying to any fastener w/o torque wrench, give or take a few ft. lbs. It's from experience, more than anything.
If there was a value for "go-no go" on removal of spark plugs out there (and if it was realistic?) I'd bet over 50% of the cars I touch would never get new plugs?
As I suggested it's an experience thing and through experience and feel, good technicians can tell if (usually) threads are being pulled.
Any critical part is then finished off with the torque wrench.
I'm here to help. ;>)) BTW....