Now, we all know that bank angle has nothing to with stalls. But turns do. And the simple fact is, unless we have a good reason to do otherwise, we want to avoid steep turns at low airspeeds because a high load factor raises the stall speed and also increases drag. We all know that a steep turn coupled with back pressure on the yoke at low airspeed can lead to a stall, but it's also true that a large increase in induced drag can cause an excessive sink rate. In either case, there might not be enough altitude to recover.