Because I trust that distro maintainers catch the most obvious errors before packaging and releasing the software.

Package it for what? There are a lot of distros. Should the dev be packaging it for every one of them? Debian, red hat, suse, arch, other more esoteric ones? Which distro versions? How many years back should they be maintaining the packages?

…the context was Flatpaks and snaps which directly address it by simplifying the process… the developer would explicitly avoid that confusion.