For an Old School perspective.
No one in the ACC wanted "Maryland" to leave the ACC. They were a founding member, after all. They did it strictly for money; the financial situation of the University as a whole still is woefully mismanaged, not just the athletic department. UVa fans particularly miss the opportunity to see a close-by away game for football and the other, non-Mbball non-revenue sports (Mbball is sold out).
What really ticked off a lot of (if not all) Maryland fans was how quickly the ACC brought in Louisville to replace them. It was 100% correctly interpreted as a "Careful the doorknob doesn't hit you in the a$$"-type response. They were hoping that the ACC would just drift around looking for a replacement while school after school would either turn us down or tell us, "We'll have to think about it." They were also not amused about how they were cut off from having Pitt replace Duke as a bball home-and-home and how the MLax tourney was moved to Philly in 2014, which would have been their turn to host it.
While everyone was sad to see "Maryland" leave. No one, let me repeat that in the strongest, most unambiguous terms possible, NO ONE in the ACC was sad to see the Maryland fans leave. They were the absolute worst fans in the conference. I have never heard UVa fans say that they were hit by thrown objects at any other place, but there were routine reports they were hit by something at Byrd Stadium (usually AA batteries). Cars were keyed in the parking lot. The abusive language was terrible. You expect that kind of talk routinely from students, but not from alums. They never grow out of it. They hit Carlos Boozer's Mom with a thrown soda bottle. If you go to an away game at or meet alums/fans from the pre-2003 ACC schools, ask those folks about their stories about going to games at Maryland and visits by Maryland's fans. Every one of those stories will be true and not a set of alternative facts.