It's not disingenuous; I have a number of open source projects on my plate already. I probably can't take on more. But if somebody hands me, for one of my projects, a set of typings that compiles clean in TypeScript (and, seeing as how it's a compiler, that's a really trivial thing)? I'd be literally-not-figuratively out of my mind to not say "thank you" and take them. Failure for another maintainer to do so means that they are a business risk for me that I should not entertain.
It's a bit disingenuous that you can accuse someone of being absurd for not doing something, and then mentioning in the same breath that you "might not want to" as well.
I'm merely saying that for the sake of pointing out that maintaining a project is a PITA and we should all really accept that.