Jason Hinkel's article raises some good points but is hardly a valid rebuttal. It's extremely weak. I'm still firmly on the side of Pinker's narrative, which clearly fits the data far better.
(1) Hinkel falsely concludes that "The poverty rate has worsened dramatically since 1981", using a graph of the number of people in poverty (which increases by ~31% between 1981 to 2013) as justification. The rate did not increase. The rate decreased according to his own graph! The population increased by 59% over that same time period, so the correct conclusion from his own data is that the poverty rate actually reduced over that same time period.
(2) Not only is poverty better, but almost every other meaningful metric (disease/mortality/war deaths/crime deaths) is also better, which he hand-waves away in a single paragraph after falsely asserting that the poverty rate has gone up!
It is borderline dishonest, or perhaps at best he is innumerate. If this is the best rebuttal then I am even more confident in the conclusion that things are getting better - MUCH better - aside from a number of existential tail risks that we need to mitigate.