I think people want to grab athletic freaks as edge rushers. There's a million analysts out there extremely focused on quantifying athleticism (for edge players specifically). Guys like Khalil Mack and Von Miller really set that precedent.
The Ravens have never really seemed to be extremely concerned with picking up edge rushers with extreme athleticism. The guys they've drafted that most fall into that category- Kindle and Correa- haven't really blown up. It definitely seems like they value strength and technique over raw athleticism, which brings in guys like Suggs, McPhee, Upshaw, ZDS, Judon, more often than the Correa, Kindle types. Barnett definitely fits the mold of what the Ravens seem to look for in an edge player with his elite technique, so he's definitely in the top 5 players I could see the Ravens taking.