FYI to anyone wondering about interview timelines, my spouse and other people DQ'd around the same time (mid to end of January) have still not received interview letters this month. Unless one mysteriously appears our inboxes today or Monday, I can only assume we might hear something in May.
It's almost like they either a) only sent letters for people DQ'd in the first half of January or b) didn't send letters at all! Who knows. So, so, so frustrating to have zero information into this process. Everyone seems to think that interview letters are sent around the first week of the month so if we don't get something today I don't have much hope that we'd get something later in the month, as I haven't heard of that happening really...