Software doesn’t end at the 20k loc proof of concept though.
What every developer learns during their “psh i could build that” weekendware attempt is that there is infinite polish to be had, and that their 20k loc PoC was <1% of the work.
That said, doesn't TFA show you what they use their loc for?
Check out `print.ts` to see how "more LOC" doesn't mean "more polished"
I think that’s why the author was comparing to to a finished 3D game.