I think the mindset of trying to recover the model at all costs is the real problem. I've seen a torque rolling plane tilt over toward the pits and the guy hit full throttle and flies at and over the pits. I understand if a model gets over the pits by mistake and the pilot flies it back. That stuff can happen. I don't understand intentionally sending it at the pits as a bail out plan. So I would guess the rule was a result of a few idiots acting badly and screwing up things for everyone else. I think a better rule is to not fly anything your not willing to dump. Don't know how you would enforce that but I'll still follow it.