Hi Jon, I’m in agreement with you. I haven’t heard many instances of actual frame breakage, more so the attachment points of the walls is what I’ve seen more of.
We had that happen on our 2020 39FBB and got it repaired last April under warranty in Tishomingo.
There’s some additional info in this thread -
I posted some pictures of the damage to walls and the bad weld that eventually broke and caused the wall to separate from the frame. They folks at Tishomingo did a great job fixing it and it’s been solid since.