bmd
Island in the stream.
If this case is to set that bar at what is too drunk to consent (which I'm assuming it must at least to some degree, in the absence of other clear definitions of what is and isn't too drunk), then it's setting it at a bloody low level given the amount that a lot of women drink when out on the town at weekends (ie binge drinking). She'd certainly not drunk an unusual amount by that score, though maybe she had drunk it a bit quicker than normal.
This case decided that she was drunk and unable to consent. Another woman may drink double this and go through the same process and be judged, by the jury, as not being too drunk to consent.
You're making out that it's a units thing. It isn't, it's about capacity to consent.