I think a large part of why everything was segmented is they released the game into EA way too early. It made it to where they had to have a ‘gating’ system where they could stop players from going to areas that weren’t developed out of finished yet. Overall this affected the maps flow, validating all your points there. Also completely agree with the voiced narrative. Part of what made Subnautica great was the silence. It gives more room for hearing the crazy sounds around you. Instead you had some chatty voice in your head that had commentary about every damn thing.
Oh no I wasn’t excusing the behavior, quite the contrary. I’m saying the map sucked because they went into EA too early and didn’t put effort into changing the map for full release. I agree with you!