Update! My wife called the hotel directly and HH Gold do get breakfast but they said "it was a special menu". I also noticed on their Japanese site that Gold & Diamond HH members are entitled to 25% off F&B (this could be an Asia wide promotion) so this could help cover some drinks and lunch. So we are booked from September 28th to October 2nd and will give a review after our stay which we are really looking forward to.