Yeah...bad error if a right handed batsmen, but given he bowled 3 of 4 deliveries around the wicket, it seems (logically) it may have been to a left handed batsmen (therefore pitched outside off). If that's the case and the batsmen didn't offer a shot, then that's plumb old son!
It could also be human error being factored in by the creators...happens in real life...looks like a simulation of all the Aussie LBW's (e.g. Damien Martyn) in the 2005 Ashes to be quite honest.