the PF - as I said above - was a sailplane pilot, and apparently qualified to a high degree in that regard. There is no "Otto" or "George" in a sailplane, and if you stall the wing in one you'd better get the nose down, because there is no TOGA setting to power out of it.
I think that whatever experience Bonin had with flying gliders .. does nothing when a qualification and experience of flying an Airbus ... or any other jumbo
Between a glider and Airbus .. this is the day and night .. and certainly when it comes to maneuvering as to avoid a stall or worse .. get out
How many "laws" have a glider ?