absolutely. I was hired this year to learn how the hell all the complicated stuff the 55- and 65-year-old programmers do every day works, and I've only learned a fraction of it so far.
Honestly, I'd put my money on it being in the organizations best interests long term if the two older employees did leave them in a rut. A lot of times it's good to purge these types of places of the cruft left behind by legacy.