Sorry but am not blaming the owner for punctures, cuts, leaking valves or the like. Certainly not for the design of the suspension of multi-axle TT.
No I do not always claim there is no defect in the tires that fail. FYI I discovered and am responsible for having a recall initiated because of human error made in the manufacturing of some LT tires a number of years ago.
Yes I use the Scientific method when investigating tire failures. As such I consider the physical evidence available and present the most likely contributing reason(s) for the failure. Simply claiming some unidentified defect is not sound Science or sound Engineering practice.
Now manufacturing and design can play a part in the robustness of some tires. If a manufacturer is essentially asked by the RV company to cut the margins to the bare minimum how is it the tire companies fault when confronted with either complying with the customer's request or not selling tires? Yes in a perfect world the tire company would tell the RV company that better quality (i.e. higher price) is needed if the RV company wants its customers to get better results and fewer failures in their tires.
But with the end user almost always shopping on the "best deal" which is really just the lowest cost why should we expect the RV company to loose sales to a competitor who can offer a lower price RV?
RVs are for many the second largest purchase in someones lifetime but too often all they look for is the "Bling" and they do not educate themselves on the underlying quality of the RV they are buying.
Look at what happened to the large US auto manufacturers in the 70's. Their quality was abysmal with some cars rusting out before the loan was paid off. Then along came Honda & Toyota etc with their much better quality. It took a number of years but eventually "Detroit" learned that to stay in business they needed to compete on quality. This battle continues and we see that new car warranties that were once 12 months to 3 years are nor 3 to 5 years on many products. There are ven some car companies that are built around best in class warranty and we can see some with 5 to 10 year warranties.
One has to wonder how it is possible cor car companies to offer 3, 5 or 10 year warranties on their complete 12 volt electrical system but RV companies in reality only deliver 6 month quality on the 12 volt system they install. The excuse of "its just a house rolling down the road so what do you expect" just doesn't wash.
Back to blowouts. If you find melted body cord in the sidewall of your tire there is only one way to end up with that result when observed across multiple sizes, designs and brands. It is physical proof of excess flexing. The flexing can only occur when the tire is not properly inflated. Not saying that RV owners deflate their tires on purpose but the reality is that a majority of RVs are run with one or more tire in overload and many are run at speeds higher than their specifications. If these observed conditions are not the responsibility of the owner who is responsible?