cannot compare

sounds like they are seeing what deals were gotten by Chicago and montreal
and what changes are being made by marriott for all properties
note marriott is no longer competing vs well regarded SPG program
thing is chicago and montreal hold trademarks that singapore does not

newly reflagged in 2015 RC chicago, managed by sage
RC montreal likely worked out a deal that prompted chicago deal
newly opened in 2016 RC waikiki and 2010 RC vail - only residence-only hotels
recent 2009 RC reserve brand , 2004 JV bvlgari brand exempt - 3 + 6 = 9 = most
even if excluding bvlgari because JV, vail is 4th vs the 3 that did sign deals
(and for example designhotels (and SLH) are not franchises, no public details)

RC singapore opened 1996
and IIRC there was a brief period they participated in past

RC always allowed award redemption, was earning they added later

re web reservations, Four Seasons continues taking bookings after hotel is sold out