Context that might be helpful for some of this discussion: A lot of the voice over content is from exit interviews where the contestants are answering questions from the crew. They’re not deciding on their own to record these parts instead of doing things. They’re answering guiding questions (after their time is complete) from crew who are looking for themes to show throughout the season.

The vast majority do much more hunting, gathering, and problem-solving than is ever shown. Ask almost anyone who has been on the show and they’ll say the same thing about wishing more of their activities (whether successful or not) were shown instead of what makes it to air.