I don't race or ride particularly fast, so these pedals used barefoot are perfect for me. I have over 12,000 miles on my current bike, and the chain has never come off, and the few times I've wiped out, I've always fallen hands first, so I don't think I'm adding much risk by forgoing shoes..
The last time I crashed on my bike, one shoe stayed stuck to the pedal. So a lot of good that shoe would have done protecting my foot. Shoes for clip pedals are such good tools when on the bike I'm not sure I can give them up in my quest to be barefoot. Time will tell. Certainly would be cheaper.