He absolutely has played Mike while in Tampa 2 looks. Absolutely have seen that.Harbs or MM can't remember was asked bout Kyle Hamilton. One of them said he's been playing great and we've been giving him even more responsibility each week.
I remember finding that interesting because I was like dude literally already plays 3 positions. Both safeties and Nickel at a pretty elite level.
With that being said, from watching some of the all 22 films YT channel, he's highlighted in a couple of the most recent videos that Hamilton is playing Mike LB when we get into Tampa 2 defensive looks.
I think MM clearly thinks Hamilton can probably play NFL caliber defense anywhere outside of the interior DL and is trying to create a legitimate superplayer out of him.