And there appears to be good reason not to say anything:
Don't pencil Jairo Beras into the Rangers' farm system just yet. If MLB approves the reported contract, teams will be furious.— Ben Badler (@BenBadler) February 29, 2012
From what I've pieced together from various tweets, there was a belief that Beras was not going to be eligible to be signed until July 2, 2012, when there would be a cap on bonuses that could be handed out.
However, if Beras is 17 -- rather than 16, as was initially reported -- then it could be that he's considered part of this past year's J-2 class, and thus is not subject to the cap that kicked in with the new CBA.
Badler in a later tweet described the situation as "complicated," and said they will have a story up at Baseball America later today. That being said, I think it is fair to say that the Rangers are looking for ways to push the envelope and be "creative" in working around the amateur bonus caps in place.