I am hippy among hippies and the only people who ever talk about it as a 'cure all' are the people really far gone. People who think crystals can cure sicknesses. Those type of people. It's literally a god send to people with stomach problems, it can help you go to sleep but I would bet everything I own it's not as deep and good a sleep as sleeping sober. I've heard people say the ointments can help with certain pains. That's about it.
I hear this kind of talk relatively frequently and do not generally have "far gone" friends.
You say it's just people who are "really far gone", but when I look at the type of marketing at CBD stores, it's marketed for nearly everything, so I suspect a lot more people are falling for this than you might suspect. Plus, any individual doesn't have to believe it's a "cure-all" - they just have to believe it cures their specific random ailment. I've seen it marketed to help with sleep, anxiety (despite it causing anxiety in a lot of people), depression, any type of pain you can think of, nausea, hoarders of chronic conditions, etc.
I agree with the top comment - I think it's great that we're starting to deal rationally with cannabis, but we need to be realistic about. It can be beneficial but can also cause real harms, especially in children and young adults, and cannabis use disorder is a real thing.