That's not what I see at all. They are all actually standing up when he attacks, en danseuse. That's not something you do when you slow down.
Sure they lost a couple meters because of Lopez, but Rui Costa didn't wait that long at all and couldn't bring him back either.
I don't even think Rui Costa was hindered that much by Lopez, he wasn't behind him at first when he got out of the saddle, tried to grap Lopez' wheel, but quickly got past him and continued chasing Remco.
Sure they lost a couple meters because of Lopez, but Rui Costa didn't wait that long at all and couldn't bring him back either.
I don't even think Rui Costa was hindered that much by Lopez, he wasn't behind him at first when he got out of the saddle, tried to grap Lopez' wheel, but quickly got past him and continued chasing Remco.