The only fight there would have been with THREE bears and one chap within their reach, would have been which bear keeps which leg or arm.
The 3 bears came not together, as he wrote on Russian forum 1 was on first day, 2 others on second, he used same tactics to scare all of them.
Biggest mistake as he wrote was that he tried to pull liferaft from sinking helicopter (he pulled it underwater yet), instead of saving satphone or inReach.
The ice floe was close (50m) and as I understood he was swimming to it not sailing.
Survival suit saved him life, without it he didn't live out even 2 hours.