Eh last year Bernard was 4th in the league in missed tackles and had a great year. I can't find this year's stats except behind PFF paywall (if anyone can share).
I imagine missed tackle rate and tackle rate correlate tightly. If you have a nose for the ball and play certain positions, you're going to rack up tackles and missed tackles. Sure some are better than others, but it's mostly an opportunity stat.
I'm a Lewis defender. I can't think of many plays he's disappointed on and can think of a bunch where he made a key stop. Reputation-wise, he's still unfairly paying for the Justin Jefferson play.