Why would anyone be surprised? (“If it’s free you’re the product.”) I don’t like closed-source, but if I want to use a vendor product (which is what this is)

Why would anyone be surprised? (“If it’s free you’re the product.”) I don’t like closed-source, but if I want to use a vendor product (which is what this is) - maybe via a license means there’s a chance it’s also acting evil?