Even if I wasn't a patron, being critical of scummy business practices isn't a right reserved solely for said business' customers. And at 10k a month with multiple developers, Dystopian Project absolutely is a business.
I am avoiding comments on the other parts, but on this, yep, definitively, I know, and met in the past, bunch of consultants who had their own company, and where getting less than that, and I know tons of people (including myself, I must confess), that even when living in countries that are expensive, get a lot less as salary.
If they are a big group, it is true that this can moderate the equation (because the 10k are split), but still, start to sound like they may be actually a full salary out of it.
I cannot complain in my case, but to support your point, I can point out that when I realised that was the case from the forum, I decided against becoming a Patreon, even if I like the game.
Especially the drawing and the combination with the text are very good (well, aside some glaring mistakes, but I can manage to understand what they mean, so it's OK), and I believe once completed and with all the drawings (got the impression some scenes had text and a black screen because they are supposed to have one or two more sketches), it could be great.
And the way the quests, cheats and interface are made, from my perspectiev help avoid some of the elements of RPGM and similar platforms I dislike.
The gallery suggest most stuff in Valos is futa, which I am not interested into at all, but for me it is still a good game.
The only reason I am not sponsoring is that for me one thing is sponsoring the thing, anotehr is being "milked", I am too thin to be a milk cow

- but if they are getting 10k a month, not matter any comment in favour or against made here, I don't believe they are going to change anything, a couple of supporters more or less are not going to create a real impact

.