This^. The issue with people is that they assume it's a fair exchange. It's not. You are paying to have someone make something that you may never see or get so that they can sell it to others later. It's not actual crowdfunding where a project is raised and the people funding the project is given a cut. This is just people e-begging for money in order to do w.e they want. This is sort of the issue as the way games are done on Patreon, it's treated as a pay per month service for a game that never gets completed because the donations never really incentivize completing the game. The donors are too much of a simp to stop donating for fear of creators abandoning projects. The best thing for people to do would be to understand it is a tip jar and treat it like Ci-En which is just a tip jar for people to get involved with the developer. The version is posted and you just donate once and just wait for however long you want for the next trial version.That is exactly what Patreon is intended to be. Patreon is NOT a marketplace where you buy stuff. Patreon is derived from the word "patron", a person who supports another (often financially). Quite common in the phrase "a patron of the arts". Patreon is NOT about paying money to purchase a product. It is about supporting artists/content creators in order to enable them to do what they do. So yes, in essence it is a charity. Usually the Patreon owners attach exclusive perks to that, which is only fair.
Obviously the patrons don't get anything additional out of a Steam version. Steam is just a way to bring the game to an actual marketplace where people can, you know, BUY the game. Both platforms are independent. In essence, a Steam version is precisely for people with your mindset: "I pay x amount of money and in exchange I am entitled to Y product". That is not how patreon functions.
The reason the Steam news is on patreon is that they use that platform as a general news outlet. You may have noticed that the Steam post on patreon is public. It is not intended for patrons only, but for everybody who might stumble across the page. And for those people it is relevant information.
We know no matter how much we whine or bitch about how lazy devs are or how they can milk a text game, this model isn't going to change because it's so lucrative for a side job. Even some of the java games that can rake in 2k per month only really need a few hours to do each update.