So... People who already had my email/phone in another service were able to get it as part of downloading all their facebook data. Consequently, my email/phone was not disclosed (by Facebook) to anybody who didn't already have it. I don't really see an issue here.
I think you misunderstand; If friend A had information about you in their address book (stuff you didn't have on Facebook) and uploaded their contacts to Facebook, and friends B and C downloaded their Facebook data, it would contain the fields gathered from friend A's address book.