But what happened from 15:45:21? At this point speed had increased, wings were approx level, pitch was reasonable, full power had been on for some time, full fwd stick (but full aft stabiliser), ailerons were neutral...
That looks like the 1,000,000 EURO question. If I'm reading the graphs in the back of the report correctly, the pilot had the stick fully forward at 15:45:15 and, ignoring some little flicks, kept it there until 15:45:40. Despite that, the aircraft continued to increase in pitch during that time. I can't figure out how the numbers work for the stabilizer and elevator. Is there anyone that can shed some light on that?