Earlier quoted context omitted.
Because users and developers both want to be able to download and use new versions of software at a release cadence that makes sense for that application. The "every application gets the same release cadence no matter what" approach only appeals to people making distros.
People making distos, as well as anyone who has been bitten by unreproducible binaries generated by hand-crafted/manually driven build processes. When I install software from a distro, it's been vetted and I can safely assume the software has a sane reproducible build process, or at a minimum, has had a sane reproducible build process added by the package maintainer. If a new standard wants to solve that process, I'm…
Normal people just want to click a link and have their app install and run.