They aren’t spreading misinformation at all. They are merely pointing out that the placebo injection used in the study has almost exactly the same serious adverse event rate as the vaccine itself. People yearn to attribute every event to a cause, but most of them are just random. Everyone has a “I got sick in October 2019 and I just know it was COVID” story.

Other parts (thank you) have already notified this poster about the evident interpretation of the original post (which I ended with «One [...] cannot point to virus or vaccine for anything that happens», thinking it should make it very clear).

I just need to note that these kind of dismissive positions - "all is well, nothing to see here, go back to your business, everything is simple" - are exactly one of the suspicion raising attitudes, causing hesitance and, in the patterns of some mindsets, «kill[ing] people».

In the context of information sharing and discussion (here) dealing with complexity is part of the game, but the real issue is in the "public" context of government and journalism: I am frequently reading, even minutes ago, mutilations of complexity and bad arguments (e.g., the strawman: group A is insane so group B is wrong) - all of this stiffens the hesitant position.