A Monday holiday is no reason to put off news, I didn't care for that tweet, it was foolish, imo. There's a balance between keeping people informed and giving expectations of a time frame. On the other hand, they haven't, imo, ever given a day when they said there'd be news and then didn't deliver. Others see that differently, obviously.
One issue with giving a timeframe on news is it brings a lot of buys that are only for the purpose of flipping right out when news hits. All I want to hear is that work is in progress and they'll pr when there's something solid to release.