Wow, you really went above and beyond to dissect this. I feel flattered.
And you are right about most of the things, obviously.
I had bigger plans for the town but had to cut it back. Most of the things you rightfully pointed out are the consequence of the time restriction. I usually aim for higher standards, but if you have a fixed deadline, you can only adjust scope and quality.
Adding skill points really requires pinpoint precision, but the stats actually do work and have an impact on gameplay. The only exceptions are Luck and Charisma; they are not used in the jam version. Wisdom, for example, will give you passive HP/mana regain over time. It's currently calculated as 200s/Wisdom = +1HP & +1MP. So with 10 Wisdom, you will regain 1HP/1MP every 20s. It has the potential to be a powerful stat in higher levels. STR will increase AP and parry chance, AGI will increase dodge and crit chance, INT will increase SP and mana, and so on.
The "1 XP" is part of the "endless" theme. Endless XP, yeah! Not a very spectacular implementation of the theme, but not the worst either. And I take it that you 'enjoyed' Jil's part of the "endless" implementation. ;)
In case you are curious: The key went to the party inventory, which is a shared inventory for all members and also contains the potions/Gold and other stuff, but unlike the potions, there is no UI yet to display them. The current implementation for locked doors just checks if the key is present in the party inventory and unlocks automatically if so. Of course, each character has their own inventory on top of the shared one, its modeled like this: player party (shared inventory) contains 1..n characters with their personal inventories.
Free look is something I usually do not use if I can play keyboard only. But yes, it is a low-hanging fruit that adds to the feature count, so why not?
The bug does block a lot of the more exciting content, and I was thinking of showing it in a video, but it does feel a bit unfair to others.
Just a warning: Jil objects to your assessment about her; she wants to pay you a visit and give you an 'earful'. I hope you are ready for it. ;)
P.S.: I am going to delete your double post if you don't mind.