If a pharmacy sells prescription meds without a prescription, they should have their license revoked and it doesn't matter where they are. If a non-pharmacy sells meds... then the laboratory that sells it to them should have its license revoked !
The online pharmacies aren't licensed by the US (from the article "Google knowingly accepted ads from online pharmacies, based in Canada and elsewhere..."), so the US can't revoke their licenses. The laboratory that sells to these legitimate pharmacies, licensed in their own countries, isn't doing anything illegal. This leaves Google as the only part of this chain that the US can punish.