Code and prose are different things, but that aside, no, I don’t expect anyone I work with to be subject to my mindless one-shotted PRs – which is as close a comparison I can think of on the development side. I also wouldn’t consider a readme to be a pure technical doc. It’s very likely to be the first, and possibly last, impression someone forms of your project. It matters.
I’m not fighting any particular fight, I’m just saying that the lack of care stands out to me, and evidently to others, and that anyone releasing a new project might want to consider whether they want it to be perceived in that way.