From what I understand about the market in Hattrick was that there was/is too much income and the inflation of the HT$ was out of control.
By making Area's very expensive the BB's are trying to control the creation of money within the game.
Talking about the scoring etc. The BBs are reviewing a lot of things at the end of the season to see what is working and what is not working. But you have to remember we are playing a game, not a electronic duplicate of basketball. It is very difficult to develop a bunch of logic rules that perfectly mimic the rules of basketball.