I disagree, there's always something you can do about it. Put on a wire muzzle. They can still eat and drink... and they're not in danger from cribbing. How are they miserable?
My horse is outside 24/7 (we don't have stalls to put them in so it's not an option) with grass and hay. And he still cribs if he feels like it, so sometimes that doesn't help.
I do agree about the ulcers--my gelding got them after being discharged from the new bolton center, and he cribbed like crazy because of them.