He abandoned the game
Viewing post in Milky Tides Free Demo is LIVE comments
He deleted his Patreon on new years after months of no updates or communication. Game is marked as abandoned on F95 as well. Also, if you look at this itch.io page, a lot of stuff got removed. It's unfortunate since this game had a ton of potential but it is what it is. I bet the dev got tired of working on this game.