If you can get a bit, you can get a file. Limiting communication of criminal organizations, you are raising the barrier to entry. However, drugs are big money at scale, so big organizations can solve it. Most people with a technical background could figure out how to solve comms too. I don't think it'll move the buck.

We need better methods for tracking physical shipments, decriminalization of use, and investment in schools, science and other programs which build viable alternatives to trafficking.