Looks like that guy, Kurako lives up the road from me...
It was a stupid and unnecessary overtake - particularly as there was a taxi parked on the left, cyclists going straight (and needing to pass the stationary vehicle), and a bus driver wanting to get back into the left lane, immediately after overtaking. If the driver had waited 5 secs he could have moved into the left lane and not inconvenienced anyone.
Thankfully poor driving like that is not as common as it used to be with bus drivers - partly due to the increased cycle awareness training (including a DVD teaching aid) and also as a consequence of the rising numbers of cyclists on the road.