As I've mentioned in other comments less succinctly, data hiding is sometimes useful of for drawing attention to other areas.
There are the better graphs the author mentioned for general purpose use, but the graph itself isn't at fault any more than using a bar chart with a poor scale (e.g
omit 0-20) to do the same hiding.
What specific issue do you have with this article? “The graph itself isn’t at fault” is very “guns don’t kill people, people kill people”. Who cares? This distinction is utterly meaningless semantics. Why do you feel a need to ‘stand up’ for box plots? Why is this a tribalistic religious war?
There are the better graphs the author mentioned for general purpose use, but the graph itself isn't at fault any more than using a bar chart with a poor scale (e.g omit 0-20) to do the same hiding.