I've been wakeskating without shoes for 2 years without any issues.
I have the padded deck, and never even thought about wearing shoes. I just use it for cruising, and small jumps, nothing fancy. The kids and guests ride it. It's nice not having to mess with different bindings for everyone. And No Shoes on the boat.
I have an extra in great shape that I don't use. I'll send pics if interested.