"We were working to release patches 1.16a and 1.17 by the end of March, but now anticipate a delay of one to two weeks. During this time, we will not only be making minor improvements, but also directing our efforts on laying the groundwork for future content.

I had intended to announce this in a future letter, but we will release information regarding the Grand Companies of Eorzea (what were referred to as “public companies” in previous posts) just before patch 1.17 goes live. We are currently readying a page dedicated to this exciting new feature, and hope to have it up on the Lodestone shortly."

I don't understand what part of the dates mentioned in the last letter is vague, as someone already pointed out, all the information regarding dates is provided within the letter. Page with information on companies will be up before 1.17 goes live, 1.17 which was planned for the end of march will be delayed one to two weeks. So the page should be up first or second week of April, but even without the delay, there is still more then a week to the end of march so its still too soon to complain.