I'm pretty sure you have to pay to isolate stats against specific player matchups and I'm a cheap f*** lol so I'll just look at Ekholm vs Colorado instead. For this season he's done alright, got owned one of the games but had great possession numbers in the December 17th game (64.29% FF, 80.04% xGF, 60% SCF, 66.67% HDCF). Ekholm got absolutely ripped apart vs Colorado in playoffs last year as to be expected when your team gets swept 4-0. Comfortably in the red for pretty much everything from Corsi to Fenwick to xGF/A to SCF/A to HDCF/A. He did get destroyed less than the non-Josi guys though if that gives you any solace haha. Most defensemen who ran into the Colorado machine ended up smelling like shit in the analytics department. I do have some copium to sell to you though. There were only 4 defenseman who had passable metrics vs Colorado in the playoffs: Justin Faulk, Victor Hedman, Mikhail Sergachev, and a mystery player I'll name later.
There was one and only one defenseman in the entire playoffs who was in the green against Colorado in every possession metric and did well in terms of microstats (cue the BaRRiE BeST OiLeRs DMaN cringers): Evan Bouchard.
Ekholm's role if we run into Colorado will not be about Ekholm. That ship has sailed. We've seen that story over and over and it doesn't end well for Ekholm. His contribution will be how much he maximizes the value of our best anti-Colorado weapon.