Same slope, same aspect, same chances of sliding (putting aside a zillion variables of course)... IF they weren't being controlled all season long. They put plenty of slopes and lifts right smack in natural avalanche terrain but control it all season long so it's not an issue... most of the time. For example, Scott Chair at Alpine Meadows goes right up a wide chute that would slide all the time if it wasn't controlled throughout the season.
If it can slide and it's inside the resort boundaries, there's a 99% chance ski patrol has already bombed it. Of course, it can still slide.
BTW, this is why inbounds observations have almost no relevance to BC and choosing what to ski. You could ski a 40 degree slope inbounds after a storm and it might be fine, but then ski a 30 degree slope out of bounds and it may pull to the ground. If you were to dig two pits the layers would likely look very different.
So, why not ski the inbounds stuff if it isn't tracked out? Why go OB when inbounds is still pretty good? What is it about the OB that people leave the resort boundary for?