Obviously Cowan's junior career point totals are benefitting from playing alongside some silly shooters (Barkey, Halttunen, and Dickinson* to some degree), but that's kind of what you want to see from a player profile like Cowan's. Offense is generated from a chain of plays, and like Marner/Nylander, Cowan is pretty elite at the middle portion of the offense chain with his skating and passing vision.
He's a step below either one or both of Marner/Nylander in every category, but for a late 1st, that's still really, really good, and a good happy medium between the two RW's skillsets. The one skill he stands out in relative to those two is probably his rattiness, as he will initiate physical engagement and stir up poop.
I'm glad we didn't trade him, and I hope he is cemented as the opposite winger to whatever line Nylander plays on.
* San Jose Sharks have both Halttunen (RW) and Dickinson (LD) in their prospect pipeline just behind Celebrini, Smith, and Eklund