Err, no. It's quite literally not. Your example is about measuring one thing. The standard does not measure one thing. It would be like calling it "partially z

Err, no. It's quite literally not. Your example is about measuring one thing. The standard does not measure one thing. It would be like calling it "partially zero cake" because it has zero sugar but some fat. Also note that ZEV's do not take into account any of the emissions related to production of the fuel/electricity they use - that is outside the standard. So they may have more net emissions, they may have less.