The laws have changed then because you could NOT be offside from a ball played back.
Was that ever written into the rules or was it simply an interpretation by many people (such as "if you raise your arms in the box it's a penalty" - even though handball has always required intent)? I mean, as I've now mentioned three or four times in this thread, if someone has to play the ball backwards to get it to you, you are behind the ball, ergo, onside.