Blame it on the Patreon payment system.
Can't really blame the Patreon "system" directly. It really has more to do with the developer.
IF they are actually serious about the game they are making they will focus on it even if the Patreon system is a disappointment. They may feel that it isn't "worth the effort", but they are STILL focused on making something.
BUT, if they are just lazy in general and just "messing around" with making a game, then it doesn't matter if they make $1 or $1000 a month off of Patreon, they will STILL be just "messing around".
The problem is, Crush clearly is NOT SERIOUS about actually making something, as you can tell from the YEARS LONG history of doing pretty much nothing, then "starting over", then bragging about the avatar that does nothing, THEN about changing mechanics... Only to then turn around and basically do a "re-start" with all the above added in AND STILL not have content added "until we get it working", only to then turn around and blame everyone BUT himself over the delays.
A REAL desire to make a game from a creator will get them to actually work on the game no matter what. But if it is simply a "side project" then it will STAY one.
The ONLY thing that Patreon does is reward those who are lazy, but successful (earning a living per month) and punish those who are serious, but not successful (not making enough to justify the effort). But that has nothing to do with the system used because on the flip side, if you are "lazy but failing on Patreon" you will mostly likely STOP working on something. And if you are serious AND successful, the amount of effort to make something WORTH playing is doubled.