I agree with RawBudski in that Mighty Wash is a good product. There is not that many things you can do when the plants are in flower and you care about the end product being medical grade. The Hot Shot no pest strips are good as well as neem oil and all it's derivatives. I've heard tobacco tea works as well.
Mostly the error around mite control comes from two things;
1) the laziness or oversight of the grower not being diligent in a particular control and it's application. (spraying under the leaf)
2) the reliance on one type of control. (this causes mites that survive to develop resistance to that particular control)
Personally, using three different products (with three different modes of action) in rotation has worked well for me. - for infestations, an application every three days to kill newly hatched eggs and for prevention, once a week.
You have a classic error in your statement:
Mostly the error around mite control...
This sounds like a grow shop salesman talking.
I don't have a problem with controling mites because I stopped making the mistake of controling them,
and decided to erradicate them.
Why start a war with mites if your intent is to control them. To me, that's just unnessessary added cost.
All it does is makes mites mad, and growshop salesmen happy.
Although you do make valid points if you decide to only control mites. Prepair for a lot of time spent
not tending to plants needs but rather fighting mites.