I think a lot of tire issues that are blamed on tire construction, wrong pressure, speed, age, etc. are really road hazard issues. Hard to know if you hit anything.
In 15 years RVing I have had two tire failures on the road: one a trailer tire in a construction zone, who knows what I hit.
Fall of 2012 out side of Austin I lost a drive tire on the Volvo. Attributed it to tire age on a recap. Then a few months later while doing maintenance I found a 3" long, 1/2" bolt with a welded washer loose in the frame of my hitch. It had obviously been bouncing around on the road and I am willing to bet that it was the actual cause of the tire failure.