I also got rejected in the last few days. I was sent this link from my nomination application rejection, which may provide some info. I'd take a guess that without having a specific niche, Deep is at a disadvantage to get it's editors selected.
https://blog.medium.com/bnp-editors-9c0a6f5a133a
Written by Kyle L.
Writer by day. Musician by night. If you have questions, I may have answers as a pub editor.