How is that different than my dad saying the
cliche "Back in the day we had it much worse?" It's just a book to make the same conservative point. Since when did any child of a parent hearing that ("Back in the day, we didn't have food / shelter / etc.") respond in agreement? Talking about how much worse things were back then is beside the point, because it is the wrong category of comparison to make. It just shows the person - a parent, a teacher, Prof. Pinker - saying it is out of touch and doesn't understand the actual complaint in todays' context. It's just paternalism expressed with more words.
In fact I can answer my question in another way. We do not exist as a hive collective and nor ought we individuals compare our lives to an alternate life living in the past. A historical societal fact that is technically does not apply to the problems of individual people living today. It was wrong of Pinker to inconsiderately apply those historical facts on the level of societies by further making his implied political points about the individual needs of the marginalized and the oppressed today, but in public that is what he has constantly done.