Nah. I'm one of Smalling's biggest fans on here, but him passing behind the recipient (especially when going out wide) does slow us down. It makes it impossible for the winger/wingback to actually move onto the ball with momentum and drive forward. Instead they have to stand there and wait for it, or even come backwards to get it, which ends up giving the opposition plenty of time to come over and cover them so now they can't go forward. Of course, considering it's normally Valencia that he's passing to, it's questionable how much he'd drive forward anyway.
The majority of complaints on Smalling are ridiculous, but this is the one main one where they do have a point.