Auto-braking was never a thing in the original beta. At some point this was added in with no option to toggle off or put a delay. This was one of the features I liked most about the original zwift. You could, like real life, coast and fiddle with your phone, food, whatever, and wouldn’t have to start from a dead stop. Granted, some people like it (I don’t get it, but that’s your preference), but at least give an option to toggle it off for a long coast down or a delay (30s, 60s, 90s, etc).