Because they move the frontier of PWAs forward in a big way. They aren't simply quality of life improvements, which the vast majority of these things are (sans the popover attribute, which will make a host of things easier once browser versions are sufficiently updated past the point of worrying about using it or not)
I want to be able to persist to the filesystem of the user, for instance, because the software we make is all about editing files, and currently, the user has to upload their files to us and crucially we then have to store them on a server. I'd like to remove that server requirement, for a multitude of reasons, and be able to have read / write permissions to a sandbox directory that lets me do just that.
Not everyone is making apps that benefit from this, but the ones that do, really do and they tend to be big. Our app has 400K+ users for instance
I want to be able to persist to the filesystem of the user, for instance, because the software we make is all about editing files, and currently, the user has to upload their files to us and crucially we then have to store them on a server. I'd like to remove that server requirement, for a multitude of reasons, and be able to have read / write permissions to a sandbox directory that lets me do just that.
Not everyone is making apps that benefit from this, but the ones that do, really do and they tend to be big. Our app has 400K+ users for instance