I usually base my determination of steepness on whether or not I'd feel comfortable skiing down. This was just outside my comfort zone for a sustained ski run. It'd be fun, but I'd have to take it pretty slow so I consider it steep.
There was one party climbing down below me. In one section I knocked a small rock loose. It just kept picking up speed. I hollered out "ROCK" and was relieved to see it finally stop well above the others. Two holds later the same thing happened, but this time it came much closer to the other climbers. I decided it was time for me to just sit down and wait a bit until they cleared the route below.