In truth, Google‘s decision to change the way Gmail gathers contacts isn’t so much a repudiation of automation as an acknowledgment that automation must be balanced by human oversight.
By far having Suggested Contacts where Gmail puts its auto-created addresses gives users back the control over their address book. By default, Suggested Contacts that you email regularly are automatically added to My Contacts. And if you do not like this automated step you can still choose to disable usage-based addition of contacts to My Contacts. Once you do this, no matter how many times you email an auto-added email address it won’t be moved to My Contacts.