improves readability
PHP is evolving. There are new concepts added to many programming languages to ease writing and reading (more important!). PHP should focus more on developer experience (but not for legacy projects that get never upgraded to PHP 8+).
We spend a lot more time reading code than writing it. The elegance of short closure combined with the convenience of variable scope usage has already shown to be a game changer on Typescript and there doesn’t seem to be any technical issue with having it on PHP.
At least once a week, I throw away an array_map because it ended up looking too bloated and go with a classic foreach instead. Short Closures 2.0 without the use(...) block would've solved this problem, just 2 votes...