Hi DozyWannabe,
And had they let go of the controls then the elevator demands would have ceased and the trim would have returned to neutral.
If only that were true.
Once the aircraft was climbing with fixed thrust, and with the stick pitch neutral, the FBW computers would maintain 1 g, and continue to trim the aircraft in pitch as the speed washed off.
In your glider, if you don't move the trim wheel, it will feel heavier in pitch the slower you fly - that feed back is missing with AB FBW.
When Normal Law is working it feels progressively heavy in pitch as speed reduces below alpha Protect, and impossibly heavy if you attempt to fly beyond alpha Max. ALT LAW has no such "protection" (Limits), nor any feel.