Consider that WordPress trending no Google has droped slowly in past 5 years[1]. I really wonder how much does its market share the peak (around 2013-2014). Also, how w3techs know/estimate that there's 50% of websites that's doens't use a Content Management? [1] https://trends.google.com/trends/explore?date=all&q=wordpres...
https://w3techs.com/technologies/history_overview/content_ma... says now is the peak so far.