He plays on the wing just as much as he's play at the middle. He's not a CM, he's Winger/CAM. He plays CAM for the US do to their lack of creating talent in the middle. Even if what you say is true, if Pulisic was strictly a CM he still delivers much better crosses than Davies who's a winger. But Pulisic can also play as a winger.
I don't care if Davies never joins a CL team or even goes to a top league in Europe. I just want him to be "our guy". The US has/had Donovan/Dempsey, Mexico has Chicharito/Vela/Previously Gio when he was in form, Costa Rica has Ruiz/Campbell/Wanchope, Guatemala had Carlos Ruiz (Pescadito), Panama has Blas Pérez ect... I want to have a marque player who other countries/teams fear/respect and we rally around.