I own one and I can assure you it’s very easy to fall on your back if you overestimate the friction when braking aggressively. Not even close to real life bike braking with disc brakes if you know how to transfer your weight properly (granted, a newbie would totally fly over the handlebars if they tried to brake to the limit without shifting their weight behind the seat..)
Odd - I ride EUC and bike mainly, and bike is easier to skid on accident. Opposite experience as you. It makes sense too, since on an EUC 100% of the normal force is utilized for friction force. On a bicycle you can only utilize 100% if you're extremely good at applying the front and back brake at the perfect ratio to each other.
