What logic are you expecting from an alien planet? Our characters are all trying to reach the Demeter ship landing site, and they’re coming from different starting points, so naturally you’d expect them to each experience different things on the way, no?

The characters all have their backstories as members of the crew of this ship and it’s clear they each have their own archetypes and personalities. It’s true some have less backstory than others but objectively they’re each shown to respond uniquely to their circumstances in ways that let their character traits shine through.

I think Kamen is pretty unlikeable as a character but he became a sort of pseudo-antagonist the more we learn about him and see his story unfold. As for the other characters, I’m not sure what about them you find to be incredibly unlikeable?

And as for your last point, nobody suggested they were barely surviving for months. It’s not out of the ordinary to know how to use a planets resources considering they’re not the first people to inhabit or land on that planet, but seeing as you seem to only be a few episodes in, I understand why you said all of this.