If the point is to more-or-less represent the views of the people, our system does an exceptionally poor job of it, between this and lots of winner-take-all elections + gerrymandering (sorry, other 49.9% of the population, better luck next time). I'm probably less on the "more democracy is always a good thing" side of the spectrum than most in the US, but this stuff is subversion of democratic will to no clear systemic beneficial purpose. Quite the opposite, as far as I can tell.