They are actively skipping federal regulations around medicinal product quality. That's why it's not federally legal. It's a giant grift. It's "medicinal", with no FDA oversight.

If you have even a mild curiosity - get some home grown. What's sold in dispensaries is manufactured with no quality oversight or enforcement. They have lobbied to raise limits on mold and bacteria. Even testing is just a marketing gimmick. The guy who smokes his own, puts a LOT more care into his product than a giant corporation growing thousands of plants at a time and whose annual profits depend on selling any contaminated or infected product.

It's just a matter of time before people start dying (again) because of lax regulatory oversight and enforcement.