And what would being honest accomplish?
You think these comments would stop if he came out and said something like "Sorry, I fucked up and wasn't able to do what I promised in time. I'm still working on it."?
Of course not. It would be the same shit regardless of what he does or doesn't do. But the thing is, he's not some multi-billion dollar company with hundreds of employees. Very few games we find on this site have more than one or two devs working on them. And they still need to make a living on top of making the game. Most of these devs have 9-5 jobs. They've got personal lives and problems to deal with.
They don't have to be making these games. They don't have to deliver anything to us. If you don't like how things are working out, stop giving money to their patreon/subscribstar/whatever and move on. Just understand that this entitlement people are feeling is fucking bullshit. Make your own fucking game if you think it's a simple thing to do.
Do I feel disappointment when games take forever to be updated and even longer to be finished? Of course. I'd love nothing more than to continue this story and see where goes. And probably restart it since it looks like the dev is remaking it based on that sudden 10 to 30 day skip. I've played plenty of games that I thoroughly enjoyed only to have the dev just up and vanish without a word. I've seen devs just give up because of the amount of bullshit people threw at them because they didn't like the direction the game went in or because the game wasn't being updated fast enough.
However, these games are passion projects. You are not entitled to this or any other game. Keep that shit in mind.
Yes, everyone who disagrees with or dislikes your entitled attitude is face deep in the dev's asshole.