Games like this is why i don't do patreon or gofundme games, either they tease and don't deliver or they take forever releasing updates and when they do, they are small or they just straight forward get abandoned and all that money spent is wasted....looking at some tiers that could be as much as 135 a month, no game is worth even a 135 bucks let alone that much a month lol
I have yet find a game that is an exception from this behaviour (well ... maybe Man of the House, that had a short release cycle). Even with 5 bucks a month the game would have to be completed within a year and have high quality (or at least AA) graphics and gameplay for the price to be justified.
But that's me with a view from a player who legally owns thousands of computer games, close to thousand Blu-Rays(not couting the old DVDs), several hundreds of CDs and books with his own idea of what's worth how much.
Other people who think that this one story is worth to invest a thousand dollars ... if they want to pay as much, they have my full blessing. I won't say they are stupid or anything. If that's their hobby and that's what they want to put their money into ...they should go for it by all means.
I am not against prefunding, I co-funded something over 40 games on kickstarter. I just think that the subscription system itself favors the problems you mentioned.
If this game ever gets finished and sold on GOG or at least itch.io, I'll buy it for sure.