Multiple Tire Blowouts

Don't forget the amount of Chinese tires on landscape/flat/utility trailers, horse trailers, box trailers etc, most made in China. By the comments on RV boards you should see multiple trailers with flat tires every time you venture out on the highway. In any case you should see one every time you drive anywhere.

Exaggeration at its best.
I'm a member on several websites that represents most of the non rv type trailers you mention. We see about the same number of ST tire issues as we see on this and other rv trailering websites.

The vast majority of trailer owners (rv and non rv) like their ST tires/brands and have had no issues with them...but many of us have. Most of us found a better tire type or a different brand that eliminated our reoccurring tire issues.
If you feel the need or simply want any ST tire pick one. If you don't feel the need for a different brand or tire type or the added cost of a better tire, no one is going to think badly of you for your decision to keep using what works for you.

NHTSA tire complaints ??
Years back Carlisle had over 180 complaints and Goodyear Marathons lead the pack at 235 complaints. I see NHTSA comes through every so often and removes tire complaints that didn't give the correct info and have in the past removed those that had no bodily injuries listed.

The last 2-3 years we have a better generation of ST tires which brings down complaints. JMO but generally new trailer owners are better educated through forums about ST tire issues as evident trailer mfg offering better tires as a option or come as OEM.