Because security or something. Instead of fixing their shit, they just remove a hand-picked bunch of apps using it in a way it wasn’t really intended to be used in. Now we won’t have LastPass I guess. Coz LastPass had to resort to Accessibility Services. Not because they wanted to, but because they had to. Because there’s no other way to have autofill on Android. Google could, of course, provide such an API, to allow companies provide an alternative to their own password and form filling tools.
But there’s a problem with that: it’d eliminate the vendor lock-in they currently have. LastPass can be used in any browser, on any device. Chrome’s autofill, on the other hand, only works if you’re using Google software.
I said it many times, but I’ll say it again: Google is the Microsoft of the 2010s. You know, there’s a reason why they stopped using the “don’t be evil” slogan.