I don't think that's a good thing. Perhaps it's better than the alternative (which is that web developers abuse the hell out of the feature), but there's been plenty of cases where autocomplete has annoyed the hell out of me.

For example, I've accidentally reset multiple system passwords on a management interface where I could set the passwords/keys for several components when Chrome helpfully started autocompleting fields.

I'd much rather see a Firefox-style nag screen that notifies the user that the application in question has disabled their ability to autocomplete. If dumb developers disable autocomplete because of backwards "security" policies, showing a message saying "this website has told Chrome to disable autocomplete. If you wish to enable it, contact the website owners" or similar would be much more preferable to me. Maybe even leave the autocomplete behaviour in, but then put it behind a setting somewhere that's off by default.

All the good use cases for autocomplete=off have been ruined by all the terrible web developers and corporate managers out there.