“Engines don’t have to loose power for the props to feather”
That’s not what I said. I said if they’re feathered you have no thrust.
Which also means less drag.. which in turn would suggest the pilot intentionally feathered both engines to extend his glide. Which means probably ran out of gas, which suggests he dove for the airfield, mismanaged his energy, and stalled in the turn.... Low, slow, and out of ideas. Unfortunately most pilots have miniscule experience with handling their plane in an unpowered glide as it is required so seldom. Nothing ever happens until it does.