I think it is the newer ones, how new I am not sure. We heard the same thing when we bought our last trailer, so we bought a Featherlite. They had a problem year or two, but they are back to the original ones now.
The first Featherlite we were ever around, back in the early 80's, the guy that had it could tear up a crowbar and that trailer really held together. No care, was pulled fast over some really bad roads. We were impressed by it, because we really thought an
aluminum trailer couldn't hold together under those conditions.