I’ll probably stick to asking for oat milk instead of “porridge water” or whatever the new mandated name will be. To be honest I do think calling it “milk” lets them inflate the price when it is essentially porridge water.
Law has a concept of the average idiot (cannot remember the real term). When applying confusion as a risk. Honestly milk has been used so much in English. (Coconutsand other things) I think that would fail.
I ANAL though.
Its more likely that oat milk is intentionally selling as a mamory milk alternative. That was made as an argument. But it is clearly a biased response from the court.