This is a fair point. A possible counterpoint is that one can draw a line at malware. A fairly strong argument can be made that controlling popups is an excepti

This is a fair point. A possible counterpoint is that one can draw a line at malware. A fairly strong argument can be made that controlling popups is an exceptional security measure that is the only way, or the most effective way, to control the spread of objectively dangerous software. It is also a matter of UI - popups could appear faster than a human could control them, so it makes sense to make popups opt-in (which they are). No similar argument can be made about disabling "www." It is purely an opinionated decision amounting to "you don't need www" - assuming it's not a bug, of course.