In your opinion, the brake kit isn’t designed for use on the street, but the car comes with 1020hp.. Other car manufacturers put these types of brake kits on cars that make less power and weigh less, right off the show room.
As was stated before, there are reputable car magazines and car reviewers that have driven the car before and after that talk about how much more bite the car has after the kit was installed, as well as how much better the cooling is (no longer the brake temp warning). It depends on driving habits. Some people wouldn’t benefit from it. But Who do I listen to, a guy behind his keyboard or people who do this for a living..?
No promises on not driving the car hard. I will simply let off the accelerator earlier and start braking sooner, until I install the brake kit. I will continue to use the power the car came with and enjoy it. If my intention was to not use it, I would have bought the model S long range as you did or another non performance model.