I don't know how you can fall because you forget you're using clipless. Even with platform pedals you still have to take your foot off the pedal before you come to stop, don't you? Use clipless pedals that allow tension adjustment, and then back off on the tension. You don't need it.
The minimalist in me likes the thought of traditional quill pedals with a toe clip, but the realist in me prefers to stick with the considerable convenience advantages of the right clipless system.