I've enjoyed your playthroughs quite a lot, so far!
I definitely hope to see more.
Your theories are pretty interesting, but I won't comment on that: as you delve deeper into this game, I'm sure you will collect quite a few other pieces of the jigsaw.
A couple of remarks.
You toggled off the tutorials almost immediately: I understand that the very first popups about how to walk and stuff can be bothering; by doing so, though, you've also deactivated the explanation on how to use a new item you've found down in the village: the lockpick!
My suggestion is to leave the tutorials enabled, they are not so frequent and in some cases can make the difference.
Also, I'm aware that dive straight into the action is sometimes more entertaining than talking to npcs: most of them are there for a reason, though, and if you pay attention they will provide you with precious hints on the lore and, most important, on how to deal with enemies and things in general. Also, dialogues change over time, depending on your deeds; so it's always useful to have a chat with someone who isn't apparently going to kill you. :)
At some point, talking about the aiming - shooting - reloading mechanic, you state that you're not used to such a layout of controls.
Since I'm not very experienced in playing action(ish) games with mouse and keyboard, I did some thinking (and some researches) about this topic; but I'm far from satisfied.
And now I'm developing my second game, so the question becomes crucial in order to build a better experience: which layout do you think would have been the best one?
Which the most handy, or at least the most common one, for such a game?
A final tip: the version you played was 1.1.4, but from 1.1.5 on the game features also a "casual mode" - which is not that casual as the name might suggest, instead a slightly tweaked version meant to prevent frustration. :D
Basically you get a little more health at the beginning, ammo packs contains four bullets instead of three, and so on.
Check it out, if you are interested.
In any case, newer versions come with bugfixes too.
In conclusion, thanks a lot for playing my game and making great videos! :)