They have a point, Patreon is not a good tactic for Game Developers. It promotes activities of rapid ongoing content. Games are a different beast, you need to wrap up some content and then run a kick starter. They get the game when the development cost has been reached (and an arbitrary time factor), thus everyone wins.
Not that I'm going to knock patreon for ongoing donations and custom content, but the bulk of the money should come from a buy/sell trade. If that means, "right you get version 0.5 for $100 and then version 1 for $100 more", assuming one hundred people pledge a dollar then we're onto a winner.