Your reply makes sense. Although, I notice new things, at least. I agree they are usually smallish updates, probably mostly bug fixes, but still some new stuff each time from what I saw.
I can't recall if I read the update on cluster or subscribe star, but the dev mentioned what was going on, though I don't know if I would phrase it as 'having problems.' Just natural difficulties with needing art done and such, and, I mean, in my eyes, seeing the changes with Subscribe Star and stuff, giving some space in respect of that is just right. And for your last comment, they do somewhat mention any delays.
I feel all your points are valid and understandable, though a bit harsh. Often some new content, the dev does post difficulties, and there are general estimates on some releases. Might just not be as substantial as you may wish for.
I also wish for more more updates, more info, and all that, but I'm content with what's provided since I feel that I see and receive more than enough. Also, an update released recently.