Is sysusers.d exclusively for package maintainers?

I run a Fedora Server that has a number of system users defined in /etc/passwd using useradd, but how that sysusers.d is introduced and targeted for Fedora 32, I’d like to know: is it worth any of my effort to register the system accounts in this new format?
If I need to make a new system user, should I do it this way instead of using useradd?
I kind of like this sysusers.d format and want to adopt it and give it a try, but I don’t know the point of it.

This is the change page. Hopefully that’ll explain things:

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