Howdy rg
What was felt inside by humans has a great deal to do with aspect, and rate, both of entry and exit. BEA claim roll excursions of 40 degrees. I assume they mean each way, so remember that in ALT 2, this a/c is "Twitchy on Aileron", and no one knows if these rollies were co-ordinated (with Rudder). Expect a fair amount of Yaw blended in, and Pitch is by no means nailed. Tail low, descent of 200 knots, with large g value trends. Not a walk in the park. Initially, the Brasilians made note of "flail injuries", those trauma that see extreme accelerations both positve and negative. This was noted of course on those recovered on the surface in the weeks following impact. I doubt there is a Seven Flags e-ticket ride that would come close to the accelerations in the fuselage. CAT can cause broken bones, necks, and serious Skull fractures. And that is simply the bottom falling out and back up.
Those unrestrained were thrown quite violently about. The picture thus far is presented as calm, measured, and conversational (Pilot to Pilot). I hope to God it was like that, but I truly doubt it was. In roll entry and recovery, those situate furthest from the cg (roughly) get the most shaking about. If your pilot is a known goofy foot, don't sit in back.