If you want to argue that his peak wasn't very long, only 3-4 years of truly elite play I can agree with that. But he was our MVP for longer than that, even if the stats don't necessarily show it. We had some truly awful teams defensively post Sutter.
Anders Eriksson, Adrian Aucoin in his late 30's, David Hale, Jim Vandermeer, Adam Pardy, the corpse of Jordan Leopold, Ian White, Aaron Johnson, Steve Staios wearing cement bricks for skates, THE Anton Babchuk, Chris Butler, Scott Hannan, Derek Smith, all played significant minutes in front of him in the years his numbers faltered.
Anders Eriksson is still my benchmark for worst NHL defender I've ever seen.
And look at the teams forward crops in those years too. Kipper and Iggy were pretty much the sole reason we were even around the playoffs.