What the chart tells me (aside from some quibbles on scope) is that there is a very robust market for complex analysis on the liberal side, with some junk food sites like HP.
On the right, few analysis sites, and those are in declining influence ( Eg neocon and never trumper Bill Kristol and the Weekly Standard.) National Review also never Trump, in severe decline, and lost bigly in 2016 with their never Trump cover roundly ignored.
All the major conservative traffic is in junk food sites or full on batshit terrority.
You see this play out in politics. Lots of complex liberal white papers and policies ( socialized medicine, UBI) while on the Right we get steel tariffs announced on Twitter and tax "reform" with no impact hearings, rushed through with no public comments, and mostly targeted for doner class.