First class support for embedding
Since Neovim will be provide the interface to interacting with text, any program will be able to tap into this potential and be able to include Neovim commands right in the application.
Death is quite right and quite natural
What significance does death being natural have here? It is your own assumption that something which is natural is automatically good or at the very least should be followed. Now I completely agree that the preservation of many of the things I care about on Earth is maintained by nature in somewhat of a fragile equilibrium, but there are far too many exceptions to make such a generalization. "Nature could decide" to incinerate all of it in the next 10 minutes--is that a good thing to you? And our tendency to fuck things up simply means we need to be more careful. Not to mention there are creatures on Earth that do not undergo senescence, so even assuming the appeal to nature was ever a valid reason for anything, it would be somewhat wrong to apply it here.
...to fear death so much we need to somehow eradicate it.
Why are you so certain that the desire for an extended lifespan is motivated purely by fear? For example, I personally accept that my death by old age is quite likely and I've decided that what is inevitable (or at least is quite likely to be) is not worth worrying about any more than is innate. However, I would still like to live longer simply because life is so enjoyable. There are so many things to experience that I'll never have the time to, so many things to learn, so many things to explore (on this planet and otherwise, in the mind...), etc etc. I want to live longer not out of negative emotions, but of positive. You state that death motivates you to live your life to the fullest--that's great if that's what works for you, but not all of us need that. We'll go on living just as happy as otherwise (and perhaps less anxiously than you) because life on its own can be just great.
Lastly, you keep describing those that fear death as immature babies. What relevance does this have? Even assuming these people are "immature" and childlike, this lends no reason to the debate--it's pointless. Or is this how you intend to motivate them to agree with you? By attacking their egos? "I've given up on the desire to live longer because someone on the internet called me a baby!" How about using some reason.
FORTRAN is not a flower but a weed -- it is hardy, occasionally blooms, and grows in every computer. -- A.J. Perlis