its sure as hell illegal to do what that rider did, but think of it , he is riding a motorcycle for reason..and most likely he wants to get to his destination quicker and easier than a car would normally take him .
Honestly I am guilty of doing this many times , especially at night...plus even worse taxi drivers always use this lane to pull in front of other car when starting from stop light.
Not really illegal as far as I am aware. I'm pretty sure this has come up for discussion before but if the lane is wide enough to still fit with the parked cars then it is okay to do so...not saying safe, just legal.