One nice thing about MoI is it just a normal computer program instead of some cloud-based service subscription model. So while it makes sense to care about it being supported and maintained, you don't have to worry about something you bought disappearing entirely. Unfortunately that isn't the norm anymore. I still run Caligari Truespace 3.1 that I bought many years back. Try to do that with "modern" web and cloud-based tools.

I've done some work tweaking scripts and UI elements of MoI too. That is one thing that appealed to me. While the extensibility features can be a bit limiting regarding documentation and integrations, it is still highly tweak-able.