But you don't have a problem with them sharing your information with anyone as long as it's a technology provider? Even if that technology provider has a fundamental interest in abusing that access and using your data for purposes far beyond than what you or your friend ever intended?
You are choosing to share the information with them. They can view your profile and see it and type it wherever else they want, the only thing that preventing automatic export achieves is making it inconvenient for someone to leave facebook, not prevent someone from taking any conceivable action they wanted with your information.
That is unrelated to an issue that essentially amounts to adding your friends' phone numbers (phone numbers they already made available to you) to your new address book when you get a new phone.
Not if Google subsequently decide to make your information available more widely than it was originally, it's not -- and I would remind you that several of the Internet giants, including both Google and Facebook, have faced heavy criticism for deliberately doing exactly that in the not-so-distant past.
