Yeah, that's why it's called a Formula. Most of those things you mentioned were a major change to performance, and made a huge upset to the balance of the sport. All the teams using the same brakes don't apply to that list. All the other teams had to simply follow suit if the fan car was allowed to continue.
These brakes have been around for quite a while, and the distances have not that greatly increased over the years since their introduction.
After doing some more reading, I was surprised to find out that steel brakes at a decent temperature are not as inferior to carbon as I thought, if heat issues and weight issues are non existent.
F1 is about being in a restricted Formula, that is supposed to be the fastest in the world. The quickest around a circuit. Going back to steel brakes would make the cars slower overall, and less technically advanced.
The other thing about the brakes, is this tech is offloaded to Brembro and Hitco anyways and the teams don't have to do much with them except replace used parts and keep running them.
One major disadvantage to carbon brakes is the fact that each time they are used, carbon fibres are clouded into air, and some I assume must get in their lungs over the years.