Earlier quoted context omitted.
But the article explains why they override ctrl-s. It is because the users had muscle memory to keep hitting ctrl-s to save, since they were used to not having an auto-save function built in. But more than that, is the idea of a web browser as an app delivery platform. If a web browser is running an app (such as a word processor, or spreadsheet, or anything but browsing the web) it is sometimes necessary and benefici…
.. another relevant xkcd: https://xkcd.com/1479/
On second thought, I'll be glad when I don't have to know that.