Yes the updates take a long time, i wish he released more often. But there are differences between this dude and some others that are taking a long time between updates.
For one he was always honest that he works slow, and he does not say he will release today and then breaks that promise 5 times. Also he did not charge his patreons when he was taking a long time to release anything.
So i would not compare him to the lying devs like Gumdrop or Aorrta, who always promise releases but then fail to deliver, and have done it so many times it is not worth counting anymore.
I am fine with waiting, there are other games here, and i know that when he eventually releases it will be quality like it was so far.