It seems you are correct in that bind_result should occur after execute and before fetch.
This has never caused a fatal error for me or anyone who used the Kit over the years, and those scripts haven’t changed in years, either. Looks like it just goes unnoticed with the default warning level of the php interpreter, and works correctly, too. Weird, but interesting.
Thanks for bringing this up, I’ll change it for UE 4.27.