They don't commission every piece of art, all the main story artworks, the dates etc, are by the xxxx52 who is on the dev team, the commission is for all the side/shadow art. I personally think it's a waste of time too given the quality has been, variable, on those arts and often it's very easy to notice the shifts.
The problem really is they all have lives outside this game and can't really live on the money this game makes to put effort full time, compounded with the fact they made some bad choices early on they've hit this stumbling block which they've hopefully straightened out.
If you don't want to support them fine, but this isn't a scam. Also Majalis have devoted their full time into making their game and do basically nothing else, abandoning all other work to make the game. There is a difference.
I do agree that the $20 price point for the early version is ridiculous, but the developers are not bothered and in fact fully understand why people might drop the payment to the $5 if not $1 tier until they make a release, and because the game is always made free a month later it isn't massively a problem to drop to a lower tier anyway, you get everything but the game at 5 and basically everything at 1.
They're doing their best, this is most certainly not a scam, I have interacted with most of the developers on Discord or in their Patreon and they're legitimately sorry about the time they've taken and are hoping that now they've fixed the problems they didn't even know they would have they can pick up production.