I am Japanese, so please understand that my English is not very good.
I work for a game company and do development, so I know how difficult game development can be and how many unexpected things can happen.
But what people are criticizing is why they lied. Why was it postponed from the 10th to the 12th?
Didn't they say the date was changed because he said many people be able to play the update on weekdays?
It would have been better if they had been honest and said there were a lot of issues and no idea when it would be updated.
If that were the case, people wouldn't be as angry as they are now.