@ErikJonker @geopolitics on other forums I've seen Romanians being rather surprised about Romania's "new" borders.
Apparently they include Vinnytsia.
According to them Vinnytsia has historically never been part of Romania, has never been claimed by Romania or its predecessors, and there aren't even many speakers of Romanian living there.
So, the Romanians are scratching their heads in confusion.
(Disclaimer: I'm just parroting hear-say here, I have no clue of Romanian politics or history)