I can't imagine all the Platinums and Titaniums in Cat H and Cat G cabins will have lower reservation priority than a first time sailor in Cat E or Cat D. Looks like a mountain out of a molehill to me.
HOWEVER, if booking a Cat D or Cat E provides a "real" chance at a FREE upgrade to a Cat C (or above), I will be in the front of the line screaming against this change.
