Having now looked at the OP, I was up to saying "2D - WTP? The only people who play 1NT white at MPs is us." And then I saw 11-14. That's different. Especially after "11-14? Are you sure? Really sure?"
When, in 1995, Announcements came in (in the ACBL), my MP average went up 2-3% overnight. Why? Because when partner opened 1NT, I said "good 11-14". People stopped asking, or looking at the card, at our Alert (but only when they had a non-obvious call); fourth-in-hand for some odd reason guessed right much less often than before.
That Announcement rule has been pushed to "all NT ranges", because many places found that the same thing was happening when not announced - "they might have forgotten to Announce", "It makes a difference if it's 15-17 or 16-18" - and no matter what the reason (which was probably valid, at least in questioner's mind), fourth hand did seem to guess right in that partnership more often than normal. It drives me nuts to hear the people complaining "everybody plays 15-17, why do we have to say it?" when It's For Their Benefit, Not Mine.
The Alert Procedure in the ACBL is convoluted, incomprehensible, and overweight; but this part of it is Right.
WeaSeL over Preemption explains this like I never could; I've mentioned that people are playing WeaSeL vs. NT before...
Long live the Republic-k. -- Major General J. Golding Frederick (tSCoSI)