Very interesting ATC communication.
- Pilot reported no power and no hydraulics, aircraft barely controllable!
- TWR ordered to GO AROUND! Because the gear was up.
In this case, with insight, gear up landing would have been much preferable.
Fully aware of the emergency, instead of ordering a go around - with a clear voice of authority - the controller would have been better off asking the pilot if he was aware his gear was up, and let him decide further actions. IMHO.