I don’t believe we pushed out any new features with regards to those emails other than what is already written in your original thread. Just to confirm, did you run any scripts or anything on your account to force all the games to appear in your library? Accessing a game from a bundle purchase marks it as “active”, which means you are then eligible for emails. Generally we recommend that people do not try to run a third-party script to activate every game at once, for reasons like this.
It should be possible for us to “deactivate” all the entries on your account that you didn’t actually access if that’s something you want. (This would be determined by download count)