The problem is that for many recognizing mortality leads to think why go for it since in the end it doesn't matter.

That's just the first stage of accepting mortality.

After that comes a life that ends up being pretty darn normal, interrupted by the occasional realization that if it all ended right now that would be just fine.

Recognizing mortality is not the cure to existentialism. Recognizing mortality _is_ existentialism.

That's my point.