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.