Wow wow dude, stop right there. I'm an artist, and I know how hard is the work of an artist, even with the most minimal and simple kind of art. This is not the case, the artist must work on animation(They are not very smooth, but is something), BG, different poses, anatomics, etc. Don't blame the art for be "easy", which I think is not, and I hope your art, in case you've got something, be as good, or better than this. And if you want to blame the dev for something, blame him for being lazy as hell, or for take advantage on the patrons who pays for small amount of content.
On the other hand, come on, you can't expect regular updates and a big amount of content, be realistic dude, even the most regular devs complain sometimes about how hard is to bring new updates every month. And, you did compare this game with Summertime Saga in terms being unregular on update times? Dude, are you serious? Summertime Saga has 4 months deadlines, and almost always or always they fulfilled them, besides, Summertime Saga brings you a big amount of content on every update, and they clearly improve and increase the quality of the art and the game, without mention that they are one of the most serious and professional devs here.
But, who cares, keep talking shit and saying worthless opinions, and complaining with unsolid arguments
Note: I want to clarify, I am not defending the dev, the latest updates has been poor. I am not sure why, and I am not following the patreon account for details about that. I don't know how the patrons feels about it. They probably deserve more per each update for the amount of money the dev is earning, instead of this, but life sucks. Have a great week and take care yourself, especially with COVID walking around there