Yes, if your only metric for laziness is ground covered. That's not the only indicator of laziness though, which is exactly what I've just explained to you.
To be clear, I'm not saying Sigurdsson is lazy. It's not the word I personally would choose to describe the issue he has, but the point was that I can understand why people say that. I have a girl who works for me who can spend the whole day working, and appear to be busier than all of her colleagues, and yet to a man they would call her lazy. That's because the work she does is often fairly unnecessary, low pressure, stuff. She'll spend hours shredding, filing, restocking, ordering etc while they're left doing all the work that has deadlines, emailing people, dealing with aggro on the phone. I think this is similar to what people mean when they say Sigurdsson is lazy. The recent Chelsea home game for example, he spent the whole first half running round looking like he was working his socks off. But he hardly touched the ball. When we got the ball, suddenly those lungbusting runs he'd been making forlornly chasing Chelsea's defenders just stopped, and he was back to milling round at the edge of the box while the midfield tried to do something with it. The argument being put forward is that at times like that he needs to do more to involve himself in the game, and regardless of the semantics, I think it has some validity.
He’s basically a second striker mate and he likes to arrive in the box late. He works his arse off and with the girl in your office doing the easy work , Siggy leads the press , this isn’t the easy job. The reason he might not get the ball is because he is pressing the back line and that player usually has at least two options that are easy balls and the keeper to pass to. He starts the press and then DCL or whoever continues it and it’s often the 3rd or 4th pass that gets intercepted when pressing. Cahill was similar in that he worked hard but didn’t really get on the ball, or take the game by the scruff. Siggy is not Gerrans, he’s not going to drive his team on , making slide tackle in his own box then dribble up the pitch and end up on the end of the cross and slotting. He doesn’t have the pace or running power for that.