Hi airpolice:--
I can't find where you get the idea that the AAIB suggest that the GoPro could see the Altimeter in G-BXFI that day. This is what I did find.
That is in the report - in a table I think. If you can't find it I'll re-visit tomorrow. Some of the report seems a bit wooly and subjective. Crammed with "factoids" but lacking any real conclusion. That's how it seems to me, anyway.
I'd send the report back to the AAIB and ask them to reconsider.