Keep in mind, Barley is a living seed and can remain viable in dormancy for quite a long time. Malt has been partially germinated and then heat treated. These are two completely different things with completely different storage characteristics. Also, these are crushed grains which makes a big difference as more of the surface area is exposed.
Event Horizon ~ A tribute to the miracle of fermentation.
Brew what you like. Do this, and you will find your inner brewer.