They're opening for Wavves on their upcoming tour with a stop in Nashville in April. That seems like a no-brainer for me. I don't think that rules them out for the Farm. They're opening for another band, plus I've seen plenty of acts play Nashville in April/May and still be on the Farm.
Saw them open for Wavves a few weeks ago in Raleigh and they had tons of energy and really enjoyed their set. Lead Singer came back on stage during Wavves' set to stage dive a couple of times, but I didnt get a chance to ask Nathan from Wavves or any of the FIDLAR guys about Roo but was really hoping they would be added to the lineup.