The pool sybil is due to pool mining, not ASICs. Even before ASICs, there were pools nearing 50% hash rate, outcries, and pools subsequently "shrinking" (though that may have been a sham).
Actually, I say the reverse is true: ASICs represent one CPU, but have disproportionate voting power, that is the essence of sybil.
With 1C1V, pools represent the aggregation of CPUs, which is the very best case you can hope for - linear scale. Of course, they still do represent a different kind of sybil, which is bad in its own right.