There's a lot of FUD going on here.
For one thing, our SEH method is not patented. It is a novel method devised by KJK which doesn't use compiler support as claimed by the borland patent. -- Here's a simple experiment. Stand on a train track between two locomotives which are pushing on you with equal force in opposite directions. You will exhibit no net motion. None the less, you may soon begin to notice that something important is happening.
The OS-level SEH does use frames on a stack.
Casper