I'm not talking about this specific case. I'm talking about the whole movement.
Isolated, anecdotal evidence can be found to support nearly any position you care to imagine. But that doesn't make for good public policy and/or law.
Some people are deathly allergic to peanuts, but that doesn't mean they should be banned from sale. Some people have survived falling out of an airplane, but that doesn't mean it's a good idea to jump out of one.
Isolated cases do not a good, general idea make.
In general, the support of "medical marijuana" is just a bunch of people who want to smoke pot without fear. It's simple and it's obvious.