Yea, the original statistic was not about bytes, but about connections, in which 57% of all traffic on the web is not from a direct human action.

>But these bytes are in service of a human?

I mean, lets say that 99.9% of all traffic on the net was by one person running an AI to get them rich, we'd call that traffic 'in service of a human' by your set of rules but it does kind of break historically how pretty much all communication in history worked until we started controlling stuff with wires and radios. That is, one person with one prompt can cause a hell of a lot of communication now.

And we're not even at the point of AGI/ASI yet. That's when some other agent with their non-human goals can start doing things.