The crew though they were at 100', but were actually at around 30', due to a failure of the altimeter system - hence their inability to clear the trees
If you can't visually judge the difference between 100' and 30' your landings must be shocking!
The captain had disconnected the autothrottles, and therefore had no alpha floor protection
Thats not entirely correct. The alpha floor is available with the autothrust disconnected, but it is not available below 100R as it disables itself for landing, which is why it did not activate at Habsheim.
I still have both C4 programmes on video, they make chilling viewing.
Having watched the ludicrous excuse for journalism that was the Dispatches program I'd be loathe to trust anything Channel 4 told me. They don't have the best reputation in matters aviation.