They would get sued for libel, and they would lose because these taste tests are not valid evidence in US court. I suspect the problem is somewhat overstated -

They would get sued for libel, and they would lose because these taste tests are not valid evidence in US court. I suspect the problem is somewhat overstated - to me it sounded like the tasters believed the olive oils were lower-grade, but without a rigorous definition of what that is it's hard to say how big the problem is. Personally, I buy the lower-grade EVOO for sautéing. I'm going to be disappointed if it's really just olive oil with chlorophyll added, but at the same time I'm not looking for high-grade stuff when I buy a $10 bottle of oil. It would be a waste for what I'm doing with it.