The sales blurb on the AWE pedals mentions the accelerator pedal has been enlarged specifically for better heel and toe action, so I'd imagine it has been made wider on the left hand side to bridge the gap as it were?
You can blip for rev matching to downshifts whilst braking but in my old manual mk5 I found that if you gave it too much throttle whilst on the brake it seemed to baulk and kept the revs around 3k, made it a pretty jerky affair at times...
Some kind of race map mentioned by Alex seems the way forward, didn't even know that was possible!