[wcummings]

It seems equally likely age isn't included because widespread discrimination based on age hasn't been a historical norm (and arguably isn't now) the way discrimination based on race, ethnicity, religion etc. has. One "high level google employee" declining to answer such a loaded question in a social/unofficial context is definitely not a strong indictment of their culture.

There could be something to this (younger workers don't have families, work longer, cheaper, fresher skills, to rehash some common points), but this article feels really contrived.