Let me please clarify something about Eden.
It is not a cure-all, nor has it ever intended to be. It was designed to be an advanced medical product... but no where does it say it can cure anything and everything. If fact it even states that it is usually used with substances like bacta (and if Belgardi has its way) kolto.
It's supposed to be innovative..... its supposed to help deal with a multitude of illnesses..... but it doesn't specifically cure anything. It stimulates immune responses, it tries to physically destroy pathogens.... I mean look at the R&D.
So please don't refer to it as a cure all.
Now that being said.......
Belgardi might promote it as cure-all, because that well sell more of it. Belgardi wants to make money. Lots of money. That doesn't mean that Eden is going to make you immortal and immune to any disease in the galaxy. It's helpful, but not perfect.