In addition to what was said in this thread, NOBODY can do it all equally well. Some can't do anything well, some have a few bits they excel at (I stick myself in this group), some can do a lot well, but even the most complete player will not be as complete in all areas. In my opinion music should be about getting the best out of yourself and more importantly expressing yourself, at whatever level, and if you find bits you excel at good on you.
Chris is a solid player in Muse and his skill shines through, if he is outside that setting to me is pretty irrelevant as he is the bass player of Muse, not the bassist with Chick Corea. I only resent him for his effect on the Akai synth prices