He was on the ice against Bedard's line a lot. Bertuzzi, Bedard, Hall, Foligno, Nazer, Teravainen. They aren't exactly all stars but it's really disingenuous to say he was up against AHL competition.
Better than Compher now? Probably not. Better than Copp? I'd say a fair bit. Better skater, better passer, better stickhandler, better shot, way more physical. Copp is better on faceoffs. I think Kasper could at the minimum match Copp's production from last year with similar icetime while tilting the ice more in the right direction.