My understanding of the article was that IE/Chrome were able to block most of the malware... right?

Figure 1 demonstrates that Internet Explorer blocked 99.9% of the SEM that was used in this test. Internet Explorer
provides SEM protection by using a combination of SmartScreen URL filtering and App Rep, a technology that
requires no knowledge of whether an application is harmful or benign. Chrome, which placed third, uses URL
filtering and an application reputation system called Download Protection. Both App Rep and Download Protection
are content-agnostic malware protection (CAMP) technologies.1
The Chinese browser, Liebao, by Kingsoft placed second, despite the browser’s lack of a CAMP technology. Sogou
Explorer, another browser from China, placed fourth, scoring more than 30 percentage points higher than the
fifth-place browser