What about the stuff which isn't listed as "not approved" or "prohibited"? By that I mean flying at Va, and pulling had back and pushing hard over as an example?
You may well be right about your statements, but anyone who deliberately does anything that is not approved or prohibited is becoming a test pilot. I think common sense should be a part of any licencing - if you can't exercise common sense, you shouldn't have a licence.
There are plenty of cases of "test pilots" on UTube. I saw one the other day of some lad doing 90 deg lazy 8's in a 172. Although this is ok regarding loads on the aeroplane, the FARs state that this is illegal (and hence prohibited), and for good reason.
People die when a combination of factors adds up usually, and flying outside of the "approved" envelope could be one of those factors, so I try not to do it deliberately....