Marshall, kudos for the effort and write up. I appreciate how you or your helpers do the test, then put the info out there, worts and all (pun intended). I assume the old hops were vancuum packed and left in the freezer, rather than like mine which get vacuum packed, opened, sealed, back to the freezer, opened, sealed, back to the freezer, opened, sealed etc. Repeated opening may not render the same results. They were pellets too, which is all I use these days because I've become a whirlpool fan. Just guessing that cones might not hold up that well.
The take away I got was 1. You never claimed that this experiment means any hops sealed and frozen are perfect after 11 years. 2. Unless or until proven otherwise, vacuum sealed pellet hops can stay fresh much longer than expected.
At the homebrew level, if you buy a pound of pellets, vacuum seal and freeze, they ought to stay fresh enough until next hop season. Probably two seasons. If you need a guarantee that your pound of pellets will last 11 years,,, Well, maybe they will be fine. But why do you need them to last 11 years?