hmm... I see what you mean.
That'd work. Bottom line is, aluminum can't be allowed to flex or it will break. Steel still has a finite life cycle, but it's much higher than aluminum. I think the (old) broken seat was originally designed by Gardner as a steel structure. When Sun took over, they should have kept making them out of steel or redesigned them immediately.
I wonder if Randy sent a query to Sun, if they'd treat it as a warranty issue -- after all, redesigning the frame is pretty much an admission of a problem. Even if they don't offer a free replacement, he might get a 'good price' on it.