Hey. While i was playing today, after i exit some inn some items fell from sky (mostly ingredients, money, also 2 longbows). As i was exploring the rest of area, there were also items at the rest of the map. Definitely weird feature, or it is considered as a bug? Anyway i find it unbalancing, although i heard that monsters can also fell from the sky..literally.

My retail version did it too, but I don't remember if GrayFace's patch fixes it. And while the items indeed fall from the sky, IIRC it happens only immediately after spawning in a zone (be it from travelling, or maybe even after leaving a house?), so nothing should drop on your head while in the middle of a fight.
It is the same as after loading a game the secret doors "vanish" for a fraction of second, so when you save game right in front of such secret doors, then load and hold the movement key while loading, you will pass through them.


*MINOR SPOILER*

You can do it for example in Castle Harmondale to gain access to sections of rebuilt castle later in story.

LOL, this has always been a feature of Might and Magic VII. It's happened in all versions of the game I have played. It's always been amusing to me, especially coupled with the fact that now absolutely any item can be found just lying around anywhere (unlike in Might and Magic VI, where you would only find low-value herbs outside). Just enjoy the loot and smile when it falls from the sky.