I think people who are unhappy after having made specific arrangements for the original release date are perfectly within their rights to feel this way, but I'd also like to add my own voice to say that I wholeheartedly support the delay.

I too made meticulous plans for my whole month based around the 19th November, and now find myself in a strange position of having two extra weeks. But watching the stream and reading Yoshida-san's message on the Lodestone, I know this decision was not made lightly, and was made only with the intention of improving the game experience for everyone. I can't possibly fault that.

To be honest, if the team made an announcement at some point where they said "we need to stop regular game updates for a few months/a year to work on improving X", I would be totally okay with that. Of course I love getting regular updates and am hugely impressed with how well they've kept to their schedule over the years, but sometimes a change is needed for a better result! I would rather have a delayed game that ultimately was a smoother and more rewarding experience than have it rushed.

Could this have been mitigated with better time management from the beginning? Maybe. But FFXIV has, for most of the past decade, had the most regular update schedule of content of ever-increasing quality of any game that I can think of. I'm totally okay with allowing them some slack here and there.