Why not? Eller has average vision as a center and he's darn weak on faceoffs.
His "vision" is overstated, he's not a natural ala Desjardins but it's hard to blame him for not being able to turn Moen into a sniper while making most of his starts in the defensive zone. In Finland at center he pretty much saved Rich Peverly's Euro career. He's also 23.
On the other hand yes he's weak on faceoffs. He's also 23.