@CONF iture
The QRH would have told them to disregard that message though - if indeed it appeared (the PNF did not call it out). At any rate, I suspect that message referred to the short-term SW that could be expected while the systems sorted out what sensors were valid and which ones weren't. I'd be surprised if any of the designers in the early '90s thought maintained application of full back stick would be the response to UAS.
WRT the BEA, give them time. They're a very different organisation these days from what they were 23 years ago.