Argument for only wins because of the weight of the lawyers they can bring to bear. Clearly ephemeral recording for the purposes of processing violates the spirit of the statute at least. And there is this, from the MGL:

    The term ''interception'' means to secretly hear, secretly record, 
    or aid another to secretly hear or secretly record the contents of
    any wire or oral communication through the use of any intercepting
    device by any person other than a person given prior authority by 
    all parties to such communication.

https://malegislature.gov/Laws/GeneralLaws/PartIV/TitleI/Cha...

Oh wait, they are not helping another person to "hear", only to see the words spoken or a summary thereof. Oops, MGL has you there too:

    The term ''contents'', when used with respect to any wire or
    oral communication, means any information concerning the identity
    of the parties to such communication or the existence, contents,
    substance, purport, or meaning of that communication. 

So if you wear a watch in a conversation without consent, and then after the fact the watch tells you who was in the conversation or what it was about, that seems like a facial violation. Maybe it falls under a common carrier exemption, but then that puts legal liability on the wearer not Apple.

This may become a case of we don't enforce the laws against large companies.