Earlier quoted context omitted.
I disagree. The article argues that putting things in term of the "existential" distracts from immediate problems - for example, if climate change can be terrible risk but still not an existential risk. And more broadly, you see the argument extrapolate to an almost purely hypothetical future evades discussion of real risks in the present.
That's fair, actually. This is an argument in the article. I would summarize it as "focusing on long-term risks necessarily means un-focusing on short-term ones, and that's bad". Would you agree? The latter part however ("and that's bad") is not well supported at all. That's what the article argues by emotional appeals. For a counterexample, most of the harms of climate change are still in the future, so addressing i…
-- I'd agree with the addition "risks so long term that any calculation of their value is wholly implausible, risks such as the risk of humanity 'not colonizing the galaxy'"
-- And yeah, the article pretty explicitly puts the situation as, this is the long view taken to the level of absurdity.