I mean, I can't defend their rankings since they are... you know theirs, not mine. One is here - @Four2itus ranked him in the top 5. I still haven't gone through his film so I don't know if I will agree with him or not. I think reasonable people can disagree on highly ranked players depending on what they value most and what they project will improve.
Examples(just going through The Draft Network's big boards):
-Solak has him no. 9: https://thedraftnetwork.com/articles/2020-nfl-draft-big-board-rankings-december-solak
-Sikkema has him no. 10 https://thedraftnetwork.com/articles/trevor-sikkema-s-2020-nfl-draft-big-boardposition-rankings
-Fanspeak has him no.5 https://fanspeak.com/ontheclock-nfl-mock-draft-simulator/preview.php?board_id=0
-Matt Miller has him no. 10 https://bleacherreport.com/articles/2868550-2020-nfl-draft-big-board-matt-millers-latest-rankings#slide1
-Drafttek has him no. 9 https://www.drafttek.com/2020-NFL-Draft-Big-Board/Top-NFL-Draft-Prospects-2020-Page-1.asp
and so on...
You can disagree, and I might too after I watch him, but it's not THAT outlandish for someone to have him ranked high. He's a talented player. Different people will have different opinions and that's OK.
About scheme fit... I actually think he fits in the LDE mold that Ballard likes(the Sheard types that might kick inside on passing downs). But this was more a thread about pure talent rather than needs and fit. At least that's how I understood the exercise.
If someone is going to rely on traditional statistics (which aren't the best metric anyway), and that someone is going to hold that season against him (which is fair), then that same someone has to give him credit for his incredible '18 season, too.