“but this seems a little unfair as all clubs play knowing that they are playing to get three points for a win, rather than two, and this presumably affects their performance.”
I have to disagree. The point of the game has, since its inception, been to win, not earn points. Whether it’s 2, 3 or 4 I don’t think will affect the performance one bit.

Aside from that, like I said, this is extremely interesting,