I'm guilty of it as well, but I feel that it is unfair to Zucker to compare him to Skinner; especially straight production. Aside from injuries or a complete roster collapse, Zucker will not see 1st line or PP1 minutes.
IMO, Zucker has been brought in to provide speed and some offensive fire power from the 3rd line with flexibility to move up in the lineup as situations occur. Adams spoke of speed being a way to be "tougher to play against" and that is one of Zucker's strengths.
Obviously we need to replace Skinner's offensive output and its hard to see where that will come from on the current roster, but that should not be expected of Zucker. If they don't find a new top 6F for this role, its got to come from the core returning to form or a breakout candidate like Quinn, Benson, Savoie, Kulich, etc...