In RPGs with point distribution you often have different point-values for different types of games. For example in Pathfinder, you have:
[list]
[*]Low Fantasy: 10
[*]Standard Fantasy: 15
[*]High Fantasy: 20
[*]Epic Fantasy: 25
[/list]
The point being that, the lower the values, the more underpowered the characters are. In horror games, lower power values tend to work in favor of the intent, that is, to put characters in peril and situations of failure - or fear of failure. With 25 points in this system, I guess the intent was to make sure that nobody can be even average in everything if they tried to be.

That said, from a power gaming perspective, I'm not yet sure if going for a balanced approach (even distribution) semi-focused approach (3 relatively high stats) or focused approach (2 very high stats) is the best. Time will tell :)

Ah, and it goes without saying: it's all about writing a fun story, not about beating the final boss. :D