Well that is to be expected. Reenactments are necessary to "retell" it and it all may very well have been fabricated since the shots seem to almost follow the real life sequence to a tee. Either way I don't get hung up on that stuff, it's entertainment but informative in the process and I think it accomplished what it was meant to.I'm curious what @TheSeeker thinks, but from my view, some of the "reaction" shots from the octo were surely selected from "b-roll" content, but that's to be expected. I did find myself wondering a bit about the shark interactions, at least how they were sequenced.
And it's hard to look past the filming crew, because the premise of the documentary was that this was Craig's personal journey and discovery, but there was a lot more live filming involved and necessary to capture all that action. The main shark incident happened quite a distance from the den, for example, so they had to follow her there.
Lastly, the free-diving aspect had me wondering.... that's a LONG time to hold your breath! I know with training we can do amazing things, but on the whole it became a lot to take in.