Why does this matter? Users don't care and its easier to remember/understand that all websites are just "x.com" rather than sometimes being "www.x.com". If you have some server/troubleshooting/network/dev problem with it, the missing info should be moved to developer tools.
This is just removing data that is useless and confusing to 99.9% of users - whats the problem?
Now every single website that wants to support Chrome needs to ensure that https://foo.com is always redirected to https://www.foo.com, or at least works as if it's www. It doesn't matter that most websites already do this, it's not standard, and represents Google breaking standards because they are big enough to do their own thing.
It's just one of the 1000s of papercuts that google is inflicting to keep users from switching web browser.
This is just removing data that is useless and confusing to 99.9% of users - whats the problem?