The "I don't care" looks like "get me out of here!".
Not presenting a default choice is just bad usability. Those that know about
the different desktop environments should be offered an easy and accessible
way to get to them (I am not suggesting that the current page does that -
but presenting a false choice to many people already out of their element
trying this linux thingymajig may be enough to scare them away.). Those that
don't should not have to worry to much over such a page.