Do keep in mind, this was my very first big project. I did consider the idea of more interaction, but the work exponentially increases for a single dev like myself to add even small things like that. I experimented with the idea, but it would've easily turned a project that took me just over a year and a half to a project that would take me easily several years.
I have neither a team nor an inflow of revenue from this project unlike other VN writer teams. It's a passion project I make in my free time on the side of my life with really no help other than the very gracious volunteering of close friends of mine on some art.
I would love to create a more fleshed out project in the future, but realistically speaking those VNs you're comparing this one to were not only funded for with active donations, but they were also created by teams of people to handle the work load.
I'm glad you enjoyed the writing. That's definitely the part I enjoyed the most with this all. If you happen to know anyone or you yourself want to volunteer to help with future VNs, I'd be more than happy to accept the help if the skillset matches. My discord is @needs_bear.