And therein lies the risk. It is quite natural for a pilot to want to monitor his/her height, position and trajectory over the ground. But unless he/she is aware of the wind conditions and fully understands the effects that this will have on his/her ground speed and direction, he/she may misinterpret the signs. If this causes him/her to and bank too far into the turn or use too much rudder, the consequences may be fatal.
Maybe glider pilots are more aware of the wind? After all the effects are very obvious in a thermal or when soaring a ridge.
However why is a well-banked turn dangerous in a Cessna (for example) and not in a glider? Simple answers only please!
In gliding though we're taught that a well banked turn increases the stall speed but decreases the spin risk. It reduces the speed differential between the wing tips, and the pilot is less able to over-rudder. In a slow, shallow turn, particularly if being blown downwind or running low on height, the pilot may be tempted to try and use rudder to increase the rate of turn.
I was doing a standard BGA exercise in a Puchacz (which has a reputation for spinning) a couple of weeks ago. At 20, 40 and 60 degrees of bank the glider was stalled and the airspeed noted. Stall speed increased significantly at 60 degrees, but it showed no inclination to spin. A slow shallow turn with a little extra rudder and it won't hesitate.