I get why folks like him. He's got size, he plays rough, he provides an intimidation factor, and he has a history of providing a bit of offense. But some folks seem to be so enamored by the fact that he played top 4 minutes and put up 8 points in 13 playoff games that they forget he's a D who's never broken 22 points in a single season.
I think recency bias and a desire to have a tougher D on the back end cloud the judgement of some folks. Yeah, he put up 14 goals with the Flames the season prior to this one but that's also his career high, and the only time he's broken 10 goals. Prior to that his career high was 7 goals in 17-18 and 18-19.
I don't personally see him as a keep at all costs sort of player, even if I'd prefer to keep him. He's a bit of a unicorn in terms of size, sure, but he's not the only D out there who can bring an edge, physicality, and some solid skating.
Management's gotta have a BATNA, and a line in the sand. You said it yesterday, it's not as if there's a lack of alternative D out there.