"We should have some caution in interpreting the findings in that cannabis consumption is usually associated with other substances such as cocaine or other illicit drugs that are not accounted for,"
So every VPS provider as well. Thankfully, these restrictive measures only lead to wider adoption of VPN technology among the general population. You end up with people who know how and are willing to use these circumvention tools, which is a very good thing for society in general. In Russia, for example, every slightly tech-oriented teenager knows Amnezia, VLESS, MTProto, etc., which leads to virtually everyone having a working VPN. Aside from turning the Internet completely off, the government has very few options left; it basically can’t restrict anything anymore.