Dozy. Yes. Sequentially. Can one read it another way? "As the Pitch increased beyond ten degrees NOSE UP, the a/c continued its climb?" Would this example be more accurate to describe what it is you think happened?
As written, it explains the pilot's sensed need for Nose Up, the a/c was not climbing until it reached ten degrees NOSE UP.....
The language is quite critical, and HazelNuts39 can help with the actuals, for as written, it describes an a/c caught in a massive downdraft. And/or a pilot believing there was such a thing happening.
French or English, writers get paid by the word, so long as sense can be made. Why does BEA mention the PITCH and the Climb? Because they need to associate the two. And ordinarily, since it would not be necessary to link PITCH UP with climb, what is it they are trying to explain? I think their meaning is that the a/c was reluctant, sluggish even, in acquiring climb.....