Yeah, that's pretty much what they've said in some of the interviews I've read. It sounds like the mystery will be secondary to what's going on with Charlie, her uncle, Aaron (the Google guy), and Maggie (the doctor).
That may be what they intend, but it's not what they set up or what they lead the audience to expect. The story is
about the shutdown of all large mechanics and electronics. The insipid teen angsty love and kung fu uncle stories are all just filler.