They keep saying they make less than ca minimum wage, but as best I understand they don't work in CA so I don't understand why that's relevant? People all over the world make less than CA minimum wage, it's a lot of money in many places.
The key demand is that they get the same minimum wage Google promises its extended workforce across the USA ($15/hr), not California minimum wage ($15.50/hr). The article subhead and first paragraph mention (not attributed to a complaint of the workers) that they make less than CA minimum wage, but that is not the issue, and the article correctly notes the workers demands later on.