TL;DR: They forked Chromium to avoid being detected as bots because of the automation
Unfortunately this will probably just trigger a cat and mouse game - but I'm curious to see where that ends.
Currently, it's already painful that some companies such as CloudFlare are relying on privacy invasive features [1] to fight bots and spammers (but I totally understand their reasons).
Maybe Proof of Work is the only solution, but it's environmentally bad and stupid.
[1]: https://github.com/uazo/cromite/issues/2365
