Greedy arseholes. You and I both know there will be more to the story then "he wasn't allowed". I'd put money on the fact that they were asked to help but wouldn't.
What got me was the mother claiming that the Scout decision was 'a complete overreaction'.
But taking £42000 from the organisation (a charity, like you say) is fair and rational? And that was an out of court settlement, so they were probably after a lot more.