I suggest you actually read the thread or his publicly available Patreon post of Nov 14, 2021. He's communicated his situation quite clearly. So there actually is no guessing and hasn't been since slightly before the beginning of the year.
Here is what i see.
In November he wrote that he is struggling with motivation.
There isn't an entry from this year as far as i can tell.
You can argue that there should be more time before a game is marked abandoned. He does, however, gets donation. I am not sure how everyone sees it. But if i would donate, i would surely at the very least have some life signs from the author. I do not have money to burn away. You can guess, i am not donating.
And yes, there is still guessing. Because you do not know what his problem really is and why he hasn't responded in about 5 month.
We are all humans, but i am really for communication. Because if you do not tell what is going on without going into much detail, its just bad. Especially if money flows.
I can see that the time to mark the game as abandoned is short. So ok. Should be probably longer. But someone felt he had to mark it that way. Probably for a reason.
This is just my opinion and reasoning.
My outlook for the game is rather dim.