So remember that we don't rank players based on whether we like them, etc... their rankings are determined entirely by their projected statistics.
With Clinton-Dix and Burnett anchoring the safety spots last year for 15 of 16 regular season games, Clinton-Dix put up 74 solo tackles, 31 assists, a sack, a pick and nine pass deflections and he didn't even start six of those games. With Huddle scoring that landed him at 18 among DBs at the end of the season.
I've projected that he'll get 7 more solo tackles, a few more assists, half a sack more, and a few more PDs. That lands him at #4 among projected DBs. Nothing to do with being high on him - just looking at the numbers and projecting that he'll do slightly better than his rookie season. It's as simple as that.
But at the end of the day, I'm not a huge fan of DBs anyways...