This isn't the military or public service, though. It's making a Renpy game as a hobby. Writing text, posing 3D models, and working with Renpy logic code is much, much easier than making a game in Unreal or Unity 3D, and my point is that people that work crunch hours, work from home, and work hard to meet deadlines because their jobs' and/or bonuses depend on getting the work done in time don't bail on their team/project for an entire month short of a medical emergency.
Why not just say the next update will be light because the majority of the team took holiday for 2 or so weeks and still deliver it on the monthly schedule? To further my point, the "Patreon dev cycle" seems to be perverting a lot of people's perception of the game dev cycle where they don't seem to care about the time invested on the product, just that they expect it to always be there like they were subscribing to Netflix. It's a slippery slope for both the people working on the game and the people funding them to simultaneously take each other for granted.