No, it isn’t.
It fails literally every single point of what makes cyberpunk.
Cyberpunk is a collection of very specific dystopian tropes, combined with a very specific set of technological assumptions, which are not simply ‘communication technology beyond what existed when the genre was started’, and a very specific aesthetic.
Certain parts of the world are verging on a couple of the tropes, but a) they’re also trending toward different dystopian tropes in other cases, and away from any dystopia in still others; b) they’re not there, yet; and c) other parts of the world are trending in completely different directions, some good, some bad. And, of course, actual cyberpunk technology is every bit as impractical as you’ve said it is, which is just proof we’ll never actually be a cyberpunk universe.
Saying ‘we live in a cyberpunk future because people always [del]have datajacks[/del]carry smartphones’ is exactly the same thing as saying ‘we live in a Star Trek future, because people always carry [del]communicators[/del]smartphones’.
Actually, it’s less accurate than that, since Apple’s aesthetic, and the Federation’s aesthetic, run along the same ‘clean lines and lots of white’ lines, particularly in TNG and the movie universe, so the world actually looks sort of like the Trek universes in parts.
(And, of course, having a smartphone is a lot closer to having a communicator than having a datajack, for the simple fact that it can be taken away, can’t be used to hijack your brain, etc, etc, etc.)