It used to be pretty meaningful when autocomplete was not as powerful as it is today. Only very serious emacs users could achieve fast and flexible static completion before LSP forced everyone to step up their game.

Now that everybody and their grandparents have LSP available (or even more powerful tools if you're using Very Professional IDEs), it's not nearly as much of an issue, just hit tab and never type close brackets again.

It's not that folks are averse to writing code, it's more-so averse to actually typing out a shitton of boilerplate and feeling the slog until you actually get to the juicy bits where you have to think.

The amount of code you save grows with your codebase. It was 18% for that one, small example. In a larger codebase it can be quite a bit higher.

While I have, more or less, moved to just writing html-style templates, I do miss how easy it was to refactor something to have a different tag name. Vim and other editors do have shortcuts that make it easy to change both the opening and closing tag, but in indent based syntax, I didn't have to worry about this. There was only one tag to change.