Yes, I've been astonished by how freely ageist hiring is discussed (at least behind closed doors of hiring committees). I assume it's because it's not even really being considered discrimination in the minds of the people who're doing the talking. Getting that recognition might be the part of the battle.
It's also astonished me how at least some of the people trying to find the young devs who will work long hours are going to be in the discriminated group in a few years time! They don't seem to realise that by perpetuating the discrimination they're making themselves the future victims. It's a bizarre kind of cognitive dissonance.