This for me is the biggest issue. Has been since the first video I've seen. From what I read the rest of the game is a standard PB game, so if you like their previous ones it should be ok.
I bought it out of principle, but I can't get my self to play it exactly because of what you write.
I find this genre mix very off-putting. It seems to me like someone said:
Post-apocalyptic GOOD
Sci-Fi GOOD
Fantasy GOOD
So let's mix them all and it will be triple -GOOD!
To me it's like being offered some delicious sausages dipped in delicious ice cream, the combo is unappealing…
This will probably be the first PB I will not play…
There is some weirdness due to the way they mixed those settings, but so far I'm finding it works ok despite how implausible some of it is.
It's sort of like the Fallout games. If you take those too seriously, you're going to find all sorts of stuff that doesn't make sense. Elex is the same way.