i think the real issue is that ie isn't a target for malware any-more because nobody uses it, with the release of this information the number of threats to ie will likely sky-rocket as less informed users flock to the 'safe' browser rendering the advanced security features moot, on weight of numbers
personally i haven't had any malicious software in over 6 years, and believe me i've scanned the crap out of my pc when it acts strangely
( usually nvidia's fault by the way, dumbass driver installer. )
i think the reason is because i reinstall windows so often, and switch os drives which obviously ends up generating an entirely new disk partition and boot record which is where the really nasty stuff tends to hide
with the added bonus that i don't have a registry clogged up with junk or butchered by programs