Does Zucker automatically deserve a roster spot if he doesn't perform, though? If Zucker was performing half as well as Emp argues, nobody would care and this board would have a different whipping boy, like ZAR/Sceviour/Jank. Even by the advanced stats test, Zucker is... not doing well. Probably not bad enough to healthy scratch for Zohorna, for example, but is he making a case for performing well enough on any line to justify healthy scratching someone who (in theory) brings a tone-setting/playoff friendly element to his game? I certainly don't really see the justification for him on L2 vs L3, but maybe he'll figure it out soon.
In the 20 games since he got back, Zucker's at an xGF% of 49.13, which is good for 8th out of the 18 forwards we've used, or 6th out of the 13 forwards we've used with over a 100 minutes, wedged in between Sid and Rust. I guess that's maybe not well but it's not bad either and the only guys notably outperforming him are Gaudreau and Carter.
Production wise, he's got 11 points in 20 overall - good for 5th on the team (although Carter and Kapanen beat him hard on pace), and is 6th for goals.
That record isn't exactly what we hoped for when we got him, but it's not far off it and it's decent. It should be well away from HS talk. It looks a little bad compared to Carter and Kapanen coming into the line up in that time like gods of war - kinda like Zucker did last season - but that's them being great, not Zucker being really bad.
There's one big question on whether we've got him and McCann the right way around but otherwise, I think all is well enough with Zucker right now, and that's question isn't totally about him either. If he backslides/sucks in the playoffs, revisit, but only then.