Yeah, just not very accurate, that’s the problem, as it’s often the case with Kurzgesagt.
“A slow pandemic will not be remembered by the history books” is just one example. And they conveniently missed the bit where we bring the world economy down while quarantine may last for a 6-18 months, which is not “a really small price to pay”.
Also the bit about the immune reaction is really oversimplified, and if I remember correctly the cytokine storm they are hinting at is assumed by one descriptive study, but not yet proven to exist.