It's people like the guy you replied to that actually do the biggest disservice to projects like the Linux desktop.
Adaptability is key to progress. Every single electronic device I have had came with a minutely or largely different interface. What? Did I throw my hands up in the air and cry foul just because my new dishwasher got a rotating knob (or touchscreen) as well as the buttons it already had? No. Every `new` device you get (and here new reads as progress, not just a next season's sequel) will have different conventions/experience than the device(s) it replaces.
Stop excusing people for being learn-shy and tell them to finally man up (or that relevant girl thing) and learn to adapt to progress!