Them falling out of favor has nothing to do with nanite FYI, and you would not want to use GS for any of the benefits a tech like nanite gives you because it's

Them falling out of favor has nothing to do with nanite FYI, and you would not want to use GS for any of the benefits a tech like nanite gives you because it's far too slow. We've all moved to CS for that sort of things if you can't rely on AS/MS