Closing an airspace is letting people know they can’t fly there. It is hostile but really not the same level as an ambush and kidnapping. Had Belarus just closed their air space, the aircraft would simply have flown elsewhere and the journalist would still be free.
Well they were in Belarusian airspace. Can they close their airspace in a specially shaped path straight to Minsk where any deviation would be an infringement on their airspace closure?
You can "trap" planes by closing airspace all around them? That is effectively what occurred for the Morales flight. I don't think it is effectively distinguishable.
Not that it was right, but still quite a difference.