Hi Juan,
Maybe--although that would seem to be something they could correct easily. Most of my Gibsons are "Historics", which means they try to replicate the old guitars as closely as possible in terms of their design, so if they made 'em this way back in the day, the Historic models will follow suit.
But I've still never heard of a headstock just breaking without taking a knock on something. I'll be curious to see what Will says.
Thanks,
Jeff