Sadly I read that as "Other tools do their own thing so we decided to do our own thing too" :(
Though admittedly, "convenience for users" is a rather tricky thing to define, as you really need to define "which users". I imagine ~/.projectname is easier getting started out, but the long term management is why we (try) to have standard locations for things.
Since 1995, the team's member, Jun'ya "ZUN" Ōta, has independently developed programming, graphics, writing, and music for the series, self-publishing 22 main titles as of August 2019.
I've started using https://smartcitizen.me/ for some of my own use. It uses MQTT internally so could probably easily flash it with your own server address to redirect it whenever you wanted.