The article is absolutely right that right now and for at least a few decades, we have to live with death. It does not mean however that death is a good thing.
I mean, who would want to die when they live a life worth living? And who would want their life to stop being worth living?
(And no, I don't buy the saying that says live is meaningful only because it eventually stops.)
Evolution has no desire to make sense, it's a blind natural process with no intent or point of view. From a human point of view, what he said makes perfect sense.
Even in startup culture, it makes sense that some business (existing lives) have to die in order for new business models (those yet to be born) to emerge.
What's to say that the existing lives won't hinder growth that would happen from new lives being born and re-imagining the world that everyone is used to?