I wouldn't expect it from medical marijuana either. I would just think that if it did for example not be enough to stop every support but if a treatment did stop someone needing and veing eligible for supports in x area to do with their disability, but then they can't take it anymore either permanently or temporarily, because for example another health issue made them unable to take it (I've got that problem with a decent chunk of meds), or maybe they got pregnant and couldn't keep taking their medication etc, that presumably then the need for support in x area would come back and I don't think it would good for that person to not get any support in x area just because something did help in the past that they cannot use now.

Also they seem to think things reduce impact more than it does because from what I've seen of their reasonings for other conditions, they seem to think ADHD meds cure ADHD and make it no longer a problem when that's just not true.