Well, it's possible that the date is actually the day they packaged the stuff...which still means it has been sitting around for a while. They don't package it as you buy it? The only place I've been to that pre-packages their extract is More Beer, but they vacuum seal the stuff in bags. My other place fills the tub when you order and I also think they fill the backspace in the bulk container with nitrogen.
Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience. - C. S. Lewis, English essayist & juvenile novelist (1898 - 1963)