Come on, I follow/view Polish news, the term Romanian ("Rumuni") is used often when the context is not flatering. The term Roma is used when the context is nice. And the same people who use the term Romanian are hipocritical, they start to foam when you use term Gypsy ("Cygan").
I’m curious what news about Gypsies from Poland you read? There is few Polish gypsies and they are practically absent in media. I don’t remember any mayor news about them till this accident in Belgium happened. Romanian Gypsies were expelled from Poland at least seven or eight years ago, so you would not find Gypsy professional beggars in the streets of Gdansk now.
I also repeat that the only reason if somebody called them “Romanians” is his personal ignorance. What could you know if you are not from Poland?