Although it's a smaller range than normal, I'm just saying the magni's pot doesn't render it useless with sensitive headphones. I feel like I have a full range of volume at my disposal. The knob is decently weighty for such a little thing, so I don't sit there trying to get the volume just right either.
Would I like to have a pot that goes from 10 to 2? Sure! But I don't think most people will have a problem. And if I turn the volume down 10% on the computer, I get up to about 11 or 12 without any noticeable quality deficit.
More importantly, I like the the way it sounds, for both quiet and loud listening.