I'm currently involved in UI design and, to my frustration, adding more options or features seems to send a vocal minority of the user base into a foaming-at-the-mouth violent rage. It's like any change resets the entire contents of their brain, and it's our fault we're making things so confusing for everyone...
And let's not get started on how we're wasting time adding things that they don't personally need, and therefore no one could possibly need, ever. No, clearly by adding this sorting method, we must have directly stolen development time from the feature they want, which is a personal attack directed at them and every member of their family going three generations back.