So to the best of my knowledge, saying that implantation without nanobots used to be done is at least fully compatible with existing fluff, if not already preestablished.
And that I wouldn't dispute.Still, now that nanotech is used widely for cyberware and is described even as essential, when the technology vanishes overnight, the description of the impact (so far) is too flippant for my taste. It assumes that all you need to do is go back to the old method and under some altered pricing structure everything works as before. But unless the old technology has been developed in parallel the necessity to redesign and really reinvent back to the state of nanite assisted cybertechnology is a real crisis (and that's assuming that the non-nanotech solution is capable of the same kind of performance). You can no longer rely on nanotech retooling, standard procedures of cybersurgery don't work. You have an augmented population that needs maintenance among them probably a whole bunch of augmented cybersurgeons. Certainly the costs for higher cyberware quality grades should go up. And on top of all that some idiot in marketing tasks you with implementing cloud computing features because that supposedly boosts sales.
I don't know if nanotech needed to be reined in. Rebalancing is one thing, taking certain applications off the table is another, but scrapping the whole field? I mean I'm sure nanotech will be back. If not already in the next *ware book then down the line. But maybe nanite use for cybertech should have been exempted from this problem. After all it's primarily the new nanotech that came from Deus. Turns out you shouldn't use design patterns coming from a cruel machine god, surprise! Would have worked better with the fluff.