Not really: money laundering typically is an on-going activity, while ransomware/hostages is (hopefully) incidental. That means that money laundering laws are

Not really: money laundering typically is an on-going activity, while ransomware/hostages is (hopefully) incidental. That means that money laundering laws are up against a dedicated adversary with resources, while laws preventing ransoms... not so much. Of course, with cyber insurance, incentives for the insurer may lean towards dedicated circumvention.