I don't agree with this at all. I fell on my first two rides with Shimano SPD-Ls but then switched to Speedplay and haven't even come close to falling in the past three years. If I would have started with Speedplay I would have never fallen and that wouldn't make me a liar.

I talked one of my riding partners into Speedplays when he first started riding and he has never fallen and I don't expect that he will unless he gets hit by a car.