No doubt, like I said, I disable UPnP responses by the router, the ones that I talk about having on and useful are things such as TVs, receivers, and the like that are for discovery. Those are the ones I refer to not having any serious security implications (sure, there probably are but they are minor).
How many devices do you think will patched for KRACK? How many people will actually update the devices?
The average user won't patch, but the average user is not at a high degree of risk of being exploited for this either.... at home. Now, I suspect you will come to see a ton of exploits of this on public hotspots, smaller mom-and-pop businesses who are running consumer grade routers and have no real IT knowledge or experience, etc.. And you will see some in areas of high density such as apartment buildings and condos. However, the rewards for attacking a single, at-home user are pretty low. I'm not saying that it won't happen, nor should you ignore it, but just that you have to keep the individual case in mind.