The issue here is not that they did not hold the flight. There are many factors that I would have never had visibility that went into that decision.

As a business class passenger that gave them 9K for this ticket I am holding them accountable for making an effort to rebook me on an earlier flight and to minimize being 24hrs late to my destination - or at the very minimum demonstrate some courtesy and humanity during my interactions with the ground staff even if getting me on an earlier flight was not possible.

Am I entitled to think that an airline such as Singapore Airlines would be able to provide decent customer service to a premium class customer?