No, because knowing about the phenomena does not mean you believe it is real. Also no because the factors which lead to suicide are rather complicated. I doubt that your average suicidal person is going to care about some arcane metaphysical concept when they feel that there is no point to continuing their life. The exception would be individuals who commit suicide from a place of rationality instead of mental illness; in those cases the person might be directly motivated due to some metaphysical idea. Suicide cults are an example of this. It's hypothetically possible that introducing the idea into a suicide cult might dissuade some members, but it is hard to say.