No, but the Diamond breakfast benefit at full service Hyatt brands is only offered if there is no RC or if the RC is closed.
It is really the same benefit. And it's one of the things that distinguishes Hyatt from the competition.
(Think about a free fancy room service breakfast for 2 at Andaz Fifth Ave, for example.
http://boardingarea.com/blogs/viewfr...o-in-new-york/)
It's "RC Access or free breakfast benefit at full service brands for Diamond members"
-David