Indeed! It's old news but you are not naive! You put your finger on central problems.
UK clinics/pharms are private profit making companies. That's how the enabling law and
MC system was devised in 2018. The products them selves have improved hugely in that time. The system has not.
MedBud aims to improve the data available to patients, amongst other things. It relies on the importers supplying that data from the growers.
Finally the product you use for pain may work for me but not for you. Cannabis is like that, it cannot imho be precise in the same way that Big Pharma drugs are- ie, take 2 mg of this product and your pain will be gone for 4 hours ( even those drugs dont always work for everyone) nit's a plant with great variability.
53 years with the herb has taught me what I need, how much, when and how. Problem is finding that product/cultivar, we are all in the same boat