Why ? Because its the best way to find a true champion. All other forms of motor sport are run this way, none have a one off final. I do agree it should be less rounds and the w/c should only be every 2 or 3 years. I dont mind change but to go back to a one final even if it has semis and so on is the wrong way. What if you win every round and then be injured before the final or have a few dnf. The winner is then not the true champion.