I think running LT's is getting more and more popular.
Saying that it may run into legal conflicts putting LT's on a trailer vs ST's is simply not true. If there were any chance of that manufacturers would not send out brand new trailers equipped with LT tires such as my Springdale Rugged Terrain.
My LT's are Chinese Merits but at least conforms to the higher quality requirements of LT's. They have been rolling over rough Idaho back roads for 4 years with no problems.
One more year and I will replace them with Toyo M55 Commercial Grade LT's. I swung by Les Schwab and asked if they had any problems mounting LT's on a TT. I was informed by the manager that he put LT's on his 34' bunkhouse!!!
JMHO but I see these threads of failed ST's and I think why should I settle for inferior tires when I don't have to??!!