I'm not sure whether this type of marketing being legal in the US is as relevant as is this type of marketing legal in Israel since it is an Israeli company.
Maybe it differs from company to company and country to country, but at least the company I work for would hesitate enormously before purchasing a service from a company which immediate appears to do something that is illegal in many countries.
This company (is there a company behind it, I couldn't find those details) markets to countries outside of Israel I assume.