I can't imagine falling over because of clipless. Maybe if I put my foot down on wet leaves and the lesser traction made my foot slip. How are people falling over? It's the same as riding with a straight pedal and no clip, just a fraction of a turn. The only time I've fallen over because of a clipless pedal was because it was adjusted tight and it had a freezeup. That's it, in 1992 or 1993. Something has to be wrong if falling over comes easily! I have mine adjusted pretty firm, but I still got a foot knocked out of one when I tapped a crossing confused animal. Assume the foot doesn't come loose at first, which is unlikely, just balance until you can get it out, or start up again, get it loose, and then stop. Or if it doesn't come loose at all (has happened to me with cheapie Wellgo), pull up along something to lean against and figure it. Take the shoe off if need be (which I did).

Clipless is easier than toeclips and as easy as powergrip. Maybe easier because my pedals at least float right for clipping in.

Something is wrong if clipless are trouble.