One thing I would say is: what reason would there be for it? A few years ago people were talking about things like abolishing the offside law (even widening the goals!) to bring more goals, but over the years the game it would seem has evolved, helped by changes instituted by the (often rightly) much maligned FIFA, such as the back pass rule, the new offside law, more protection for "flair players" from referees, and a general culture, it would seem, of emphasis on attack.
As it is, if teams finish level on points then goal difference or goals scored are already taken into account.
A few years ago there was a competition called the Anglo-Italian Cup (they used to show the second half of games like Blackpool v Bari live on Grandstand - how we were spoiled back then!) and I seem to recall there was some sort of system similar to Anax's idea employed then.
And the Emirates Cup and other competitions in other sports used bonus point systems for goal scoring. It seems wrong though: and potentially a recipe for abuse. Does anyone remember the notorious case of the Nigerian teams who lost about 70-odd nil on the same day a couple of years back? Were points for goals introduced there'd be even more temptation for shenanigans of that sort. And if one team has a blinder and wins 11-0 on a low-scoring day they're suddenly 9 points clear at the top ...