With Barkley all-but out the door (unfortunately) then yes.
Rooney isn't a playmaker as such, and neither is Klaassen.
Gylfi is.
I've had this debate before (maybe even with you!), I see the role of a playmaker as being on the ball a lot and playing clever passes that create chances. Gylfi doesn't do that - barely on the ball, averages under 30 touches a game which is about hardly any in the world of playmaking. He is far more direct.