The vast majority of Marriott guests don't even know a devaluation happened - I work in a very travel heavy industry and many of my colleagues are Marriott evangelists. When I ask how they can keep staying at Marriotts post - devaluation, most have no idea what I'm talking about. Once I show them some sample before/after bookings, about half say it won't make a difference and the others ask me how to status match to Hyatt (where I'm now Globalist). For the average consumer, it doesn't matter and Marriott knows it.