In no way would it be better to rule that cars need to become regular-sized again. Imagine, not having two steps at your door to enter the vehicle, or not sitting as high as long-haul truck drivers!
If the car does not need a minimum of 1.8 parking spaces, it is too small!
This policy is at the state level and states do not have jurisdiction over vehicle standards. Vehicle standards are regulated by the national government, so this is more of an addressing the symptom of an issue the state has no control over the cause of.
That doesn't mean it's not ridiculous that garage size regulations are what's changing, but let's cast share where it's due.
I don't know the Australian constitution, but I'm guessing there's nothing in there that obliges states to accommodate stupid decisions by national government?
Not even big on the fuckcars movement and still I think just ban the fucking things. Most of em aren’t even owned by people who use utes for work. Practically every tradie I know has snap ons. These things are owned by fuckwits with too much money wanting to LARP as blue collar workers.
This reminds me of an old joke where there's a pothole in the street causing major accidents, and the solution is to move the pothole in front of the hospital so that people can get medical care more quickly.