Do you know how much the FAA spent renaming “cockpit” and changing Notice to Airmen to Notice to Air Missions in all FAA publications?

Do you? Because I'm guessing it was virtually nothing. That does not sound like a particularly costly activity.

If people want to criticize the current changes as wasting money, then it’s intellectually dishonest not to call out other agencies

This is the definition of whataboutism. Also, "wasting money" is not near the top of my list of the problems with government agencies being told they're not allowed to mention women.