In all the things being mentioned on Insiders about their bad experiences or their perceived deterioration in benefits we may be seeing the harbinger of revised Terms and Conditions, just as we did in 2008 when Platinum status was upgraded to 50% and blackout dates eliminated.
Recall that Marriott clearly reserves the right to change or eliminate the Marriott Rewards program as they see fit. Perhaps our intrepid group members have stumbled on the "new and improved" Terms and Conditions to come?
Who can say?
Although you may have a point, let me give you an example of something else:
Whenever I stay in a Marriott, I get lounge access whether I am on the concierge level or not.
From what I understand with Hilton, if there's no concierge room available, you are out of luck for the lounge too.
The grass is not always greener on the other side.