I've never had a bit of trouble with Michelins. I remember one guy posted on here recently that his Michelins were 10 years old, still fine, and asking what he should do. Naturally most of the recommendations were to get some cheaper Chinese brands, even tho it was obvious he knew how to take care of his tires and just got 10 years of service from his Michelins.
I can count on one hand the number of people I have seen checking their tire pressure before hitting the road each morning. One guy even mentioned that his TPMS was going off but that it would stop as soon as he started driving down the highway.
I am convinced that most RV owners do not keep their tires properly inflated and that is what causes most of the problems. They treat them the same way as they do the tires on the cars.