Valve just blocked games from the point shop that are unavailable for your country. It seems really dumb, since only the game itself is blocked, but I guess they just wanted to avoid having to manually check the items of each game since they might also contain something that got the game blocked in that country. Like LGBTQ themes.
It still sucks, and I think Valve is just being too overly careful there, but that must have been the thought behind it.