As a contributor to Deno, I am actually quite surprised that this got resurfaced on Hacker news after the hype June last year.
That being said, I suggest checking out this video (recorded this April) for updated information about Deno, since things have changed quite a bit since the initial announcement: https://youtu.be/z6JRlx5NC9E
(Edit: fixed link, posted the wrong one. Why would YouTube think I want to share ads...)