I hate trailer tires. I blew one the other week. Swapped it with my brand new spare and drove home. Looked at the trailer the other day in my pasture and another tire is flat. What is it with trailer tires and road hazards. These were all load E trailer tires too.
On my horse trailer, that my daughter frequently pulls, I put tire minders on them. It's better that she gets a warning of a tire problem and can try to fix/repair/pull-over on her terms. You don't want to take chances hauling horses.
When I was pulling a trailer about 20K miles every season, I got so tired of losing tires I went all the way to "H" rated tires. Sold that business, but kept the trailer. Still using that trailer about every week on the farm, still the same tires after 10 years, zero flats. One has a slow leak, but it's the rim, not the tire. There's no savings in cheap trailer tires.