I've heard that Komisari definitely isn't ripping off his backers. He just forgets to post regularly because he's working so hard on the game.
His last Twitter posts were from March 14th. Before that, things were looking a bit bleak. But I still think he's putting a lot of work into the game. Especially since I read on the Itch.io site that he's reworking all the scenes and the game is getting a ton of improvements.
You can also check Discord to see if you can get more information there. (I'm not on the server myself.) But I can certainly imagine it. Besides, I think it's really lousy to criticize people who work hard just for lack of information.
Okay, let's quantify "A lot of work." It has been almost two years since the last update. Let's assume Komi is working at 40ish hours a week, or 8 hours a day, roughly standard across the globe. Despite the successful patreon, we'll assume again they are still treating this as a side gig. Adding more assumptions, Komi likely has to commute approximately an hour a day, another two hours for food preparation/ordering/cleanup. Sleeping eight hours a day, we now have about five hours free for everything else they'd do during the week, not counting weekends.
How many hours a day is average for something that is only a passion project? Three? Two? Lets be super generousness with our assumption lasagna, and say on average, Komi gets about two hours of work done a day on HHG. (Note, this is not saying that he works two hours every single day, but that on average, the aggregate amount he spends per day across only the last two years is around two hours.) Removing weekends and holidays, we've got about ~250 days in a year they're working on the game, for a total of approximately 500 days, or 1000 hours of work.
In that time, there is no feasible way Komi has not been able to come up with an idea for the story, write it, edit it, animate it, code it, as well as bug test it without having something better than a myriad of random screenshots. In a thousand hours, we should have
easily been able to have seen even a single update with the most minor of character dialogues or quests or anything.
That is to say no, I don't think that Komi is "working hard", and I think I can easily criticize him with a lack of information based on a very basic extrapolation that was
incredibly charitable with the numbers I gave. While there is a decent amount of content in the game already, in 1000 hours he should have been able to rework and re-release the entire thing by now.
This is before I even factor in the part where he's been raking in cash for months on end now. The burden of proof is on him to show what he has been doing in 22 months.