There is no reason MacBooks have to be the best modern laptops, and yet they are. That's why I think it's a good idea for this much effort to be put into making Linux/Free Desktop useful on them.
I not into defending Apple, but there are plenty of reasons why they're okay with Asahi team reverse engineering their hardware, but won't invest any money into making it more open. After all they earn a lot from subscription services and Linux users wont pay for them.
1. Documentation implies a commitment to the decisions made thus far. Apple has no compunctions about changing things behind the scenes and concealing the impact from users as much as possible.
2. Apple’s bread and butter are always going to be macOS users, Linux will be a rounding error.