The thing with Unity trying to charge devs up to $0.20 per install of their games (well, the Unity runtime that comes with their games). At the moment I don't think anyone (including Unity) has any idea how this dumb idea of charging for installs is going to work. Most likely case is Unity (the company) walks it back... or goes bankrupt? Worse case, every other engine tries to adopt it too ala Netflix's charge per login.
As to affecting Ferdafs, unless this game has made more than $200,000 it doesn't apply. And, as the patreon is not for the game, but for access to the dev, the game has technically made $0 so, the stupid install stuff wouldn't apply anyhow.