I am not sure I got the hype from last year. In my opinion he was true to what he always had been, a good 5/6 physical shutdown D with no offensive output and no transition game (and limited speed). MTL was really bad last year, maybe his performance was highlighted because everything else was so bad...
Last year, he looked like a viable 2nd pair guy, who you can put in the top pair if you're in a bind. The problem was that the habs used him with Weber too much because of a lack of depth, and that carried over to this year. He showed a half decent shot, and didn't look out of place in 3 on 3 OT, potting at least a couple goals there. 9 goals on the season, and he had a good shot at hitting double digits had the season not been interrupted by COVID.
This year, he really doesn't look like he has any business being more than a bottom pair guy. He looks alot less decisive this year, but I kind of felt like last year had the potential to be a mirage given how he was advertised at the time of the signing. We will probably not see that form of Chiarot again.