No. You clearly aren't understanding the core of his argument. The only flawed logic I see here is yours. And it's not simply flawed, it's completely missing the point entirely, by a longshot.
"It's insanely entitled, juvenile, and just bad form." Yeah so is shouting 'Freeeeee' and adding nothing of significance. No logic, no arguments, nothing.
The update that was supposed to happen didn't and it's been months. <= What do you think is flawed about this?
The game isn't free until it is released, until then the work being done is being paid for by Patreon and other subs which allows the creator to spend his time on it. <= What about that statement? Is it not also just simply the reality of the siuation?
And if you really want to nitpick then it's never 'free' in the truest sense of the word to begin with. You always pay with something, even if it's only with your time and attention.
Now, let's for arguments sake say the game did cost 10, 50, 100, whatever arbitrary amount and currency you want. Do you now suddenly think his complaints are valid? Just because there is a price card attached to it? It having no price card does not make his arguments less valid. That's the entire point you are missing completely...