When it comes to nice-to-haves we usually leave it up to our customers to decide. If one or two customers asked for this plugin, we might consider adopting it as an officially supported plugin. Only if a whole lot of people ask for it would be consider building it into core.
One thing it has going for it is that it’s a “seeding tool” to easily get some content/discussions started on your forum; we like seeding tools, because growing a community from scratch is hard, and we strongly prefer this type of method over slightly more dubious approaches like posting with fake users.
p.s. Don’t be shy about asking for to do extra development! I know charging money for basic maintenance & upkeep is a bit awkward, but unfortunately this will happen frequently so long as plugin developers need to keep up with the fast moving target that is Discourse beta/tests-passed. One great new option for support these days is https://opencollective.com/
You gently tell users to support you there if they’d like to expedite development.