The following information was posted on the Technet page:
Our top priority is to provide the best possible experience for customers in maintaining and protecting their systems. This month, we discovered a last minute issue that could impact some customers and was not resolved in time for our planned updates today.
After considering all options, we made the decision to delay this month’s updates. We apologize for any inconvenience caused by this change to the existing plan.
So a last minute issue caused all the updates to postpone, and this is better decision as Microsoft should not want to humiliate itself from people with failing updates. Next dates as soon as they are published would be informed only by your Windows guide.
Microsoft has delayed all updates until 15th March, as was posted today Morning on Technet
UPDATE: 2/15/17: We will deliver updates as part of the planned March Update Tuesday, March 14, 2017.