A lot of this is poking at those edges of stuff that's just plain missing where we, as players, have to assume in good faith that it is intended to go in at some point - but it's still worth pointing out as you do, since we can't know that for certain!
They absolutely do not share enough information about the mechanics of their game, whether it's part of the 5e ruleset, or part of their customisation of that, or their own invention entirely. The game currently feels like Larian are afraid of using words, and afraid that if they tell us how everything works we'll get scared of all the information.
I'm hoping to get around to full class break downs and analyses some time soon, but don't let that detract from doing your own if you want to: every detailed report matters, especially if one players notices or records things that another misses.
