The dev posted on 6/24 at F95zone that the game is not dead, and a release date will be announced "in a few days". A Patreon update from 6/13 was also mentioned. If any patrons are on here, perhaps one of them can post the text of that update here.
In my first year as a developer, I released three chapters of Polarity and the first chapter of Radiant, which equaled about ~8 hours of gameplay/story content. Yet in doing so I was burning the candle at both ends and spiraling quickly towards burnout.
I know it's frustrating to wait... and as I've said before: I agree that this chapter taking a year is unacceptable/too long. But maybe try giving us the benefit of the doubt and considering that this wasn't the case for no reason instead of assuming the worst. We're doing our best, and trying to improve each day.
As much as I wish it were the case... shitting on us won't make the updates come faster.