It is incredible what computers can do, but we have to find the correct man vs. machine balance for given external environments.
See AF 447 for some interesting thoughts on that ...
John: given the requirements as stated for UTTAS, I can say with firm conviction that if I was asked to do a 15 deg lateral slope landing, I'd look REAL HARD for an alternate LZ or change my angle into the landing site.
That's uncomfortably close to dynamic tipover angle ...