It is primarily a simulation with tons of random events, as detailed in the full description! Of course there are some plot lines to go down with some characters, such as the Best Friend - which are rather limited at this time - but other than that it is a pure simulation / sandbox!
As far as I can tell from the context of the paragraph, is that it's just poor wording and actually means that the Itch version is a version or two behind the Patreon version.
