As a traditionalist by heart I much preferred the old style three heats and a final but I think that you are all missing the points why the format was changed:
At a cost of approximately $1.8m less hard to get sponsorship conducting clubs no longer wished to be in the rotational arrangement. Those states that would be prepared to continue would have to weigh up any benefits against the cost that would have to come out of grassroots racing. I assume that NSW having it for three consecutive years has led to Government support.
Not an ideal situation but the option of the old format at one venue would appear to be financially unviable.