In fact, several large companies have pushed to keep these non-competes in place in Washington State[1].
I don't think it's fair to focus only on Amazon. The reality is that in Washington State, this benefits many large corporations ( while being harmful to employees ) so it is the company's incentive to try and keep the non-compete as broad and ambiguous as possible.
[0] https://www.infoworld.com/article/2671108/microsoft-sues-goo...
[1] https://www.geekwire.com/2019/tech-leaders-sound-off-washing...