This is not about just doing it for passion or for hacking fun despite being worthless of something. There's a very pragmatic reason that makes it very useful!

The "why bother" is missing the crucial point, that the most important use of the GPU driver for Asahi would be HW accelerated desktop (and driving external monitors, etc) - it's not like a GPU driver for M1 is useless if no AAA games aren't supported...