ICSTOR is concerned about the future of his job. It is harsh to take the wait, but its probably what he believe is the best for it.
And I'm talking this because I think he made a mistake allowing his patreons to choose the character of each update. It is better for him to control the flow of the game than let the patreons do it.
Look how the story went. Caroline's update, next Linda's, and now Caroline's again. He let two major characters advance too much in the story with updates "next" to each others. I think this is not good for the flow, specially when Caroline is possible the more hyped between the three of them.
I think if he went with Linda's update (like her last one) -> Sarah's -> Caroline, he wouldn't be so concerned about the future of the game and perhaps his break would be shorter, or wouldn't even happened (with us getting the Sarah's one with others characters about now or earlier).
Of course, he said it was about his health and to rest, but I think it is not just it. This being his job he needs to extend its lifetime the most he can, and this break with the changes guaranteed 8 to 9 months more to him. Even with he pausing his Patreon and saying people can cut the support for now because they will still receive, this would mean he isn't getting the money now, but he knows the status quo of today, but doesn't know how things will be in one year, and is safier to you not earn money when you know your situation and schedule this than don't know how much money you will have in a cloudy future.
And he obviously doesn't want to launch Caroline's now because he doesn't know how his Patreon will be after this. And he took the risk of get under the skin of some patreons in exchange of a [perhaps] safier future. Because he knows people here are horny, and angry when you poke them, but they are still horny and will want to see what's come next no matter what.
This is just my opinion. I personally prefer when the developer has the control of the flow and to the supporters is left to choose some of the content that doesn't impact it directly. Like I said, I think this changes could have come even earlier.