@BigOscar
I heard the same thing about Javi Garcia and Fernando before we signed them. Based on what I'd seen of them, I didn't think they were incisive or ambitious enough in their passing to make it for us. I think we'd all agree that's proven to be the case.
With Carvalho I haven't seen a great deal of him, but what I have seen, he overwhelmingly chooses the safe, easy pass backwards or sideways. Perhaps you've seen dozens of games that disprove that and I've been unlucky with the ones I've seen.
If we sign him, I really hope you end up being right and I end up being wrong. But from what I've seen, he is light years away from being Yaya's standard on the ball.