Dude there's way much more than just adding 4 lines of code to something and call it a day.yeah development of 4 lines.
Overclocking can be something that damages any kind of device, goes from phones, to single board computers, to computers and consoles as well.
Overclocking can cause overheat and diminish the life of the CPU/GPU that's overclocked.
Even though the changes in code might be minimal, something that changes how the hardware performs need thorough testing to be able to find a sweetspot that is not too heavy on the hardware and can deliver the performance boost that we are seeking for homebrew.
You need to understand that.
Hardware changes is not something that can be tested in a day, it needs several days/weeks if not months at times to be tested as well as it should for something of this scope.