That is not true in all the cases.
Now, the consequences of waiting so long is simple that they can screw you over and you think that everything is fine (since you are thinking you are not going to get any RFE, etc, etc) so let's say you move (because you should continue with your life) and you don't get the RFE...you get denied. If you don't get in any of those "loops" as many others has experienced, regardless that you file promptly and follow every single step...sorry but that's my point of view. Agreed, don't change anything AS LONG you experienced not major changes in your life or move or many other factors.
IF VSC was as fast as CSC, I wouldn't have been with the dilema/issue/problem that I have right now, or spending more money than I have spent so far. Last week I should be probably happy as many of you that got approved, but I was approved from my previous I-751 joint filing and I am divorced way before that. Just to explain it even more, they sure did not get/match any of my previous information telling them that I was arleady divorced, I even filed a new package after divorce...in vain, since I will be receiving my new 10 GC with my married name and based that I was still married...happy? No, the information is wrong, have been in several infopass and they even tell me that shouldn't worry about my previous filing in Dec...now, you would say, why I do care? Yes I do. ...now Im trying to do an INFOPASS for ATL office and there are no appt at this time (Xtmas, NYs? who cares right?). Not only that to call the misinformation line is not even a question of choice here. But ALL of this could be avoided for me IF I was approved in a timely manner.
And no, not all HR departments follow strictly the Labor Law...that's a fact, if not many people wouldn't be posting issues with the HR department, but they do, how can you deny that? If you don't care, that's fine...but others do.