Doesn't the official table have 17 goals scored?
I know the rulebook can / is confusing but may be easier to look as any game were an ineligible has played in causes the game to become a forfeit (like a default) and unless the orginial goal margin is greater than three goals (as per rules provided by Steptoe) then always recorded as a 3 - 0 - the same scoreline for any default.
Also should be noted that in all the games that are a forfeit or a default then the '3 goals' are officially regarded as 'own goals' - tough on orginial goal scorers but rules have been like this for a long time.
So technicially 'own goals' are leading the MPL Gooden Boot with 16 goals - 1 genuine 'oggies' and the other 15 from the 5 forfeited games.