There absolutely is a need. The last few pages have been all about that need.
Look, persuasion won't work, and as things get worse, it will work less. If someone changes there mind now, it means they have to acknowledge some responsibility for a very bad situation they might previously have pretended didn't exist. It means they have to consider that the pundits and politicians they trust were wrong, at the least misinformed and most like callously lying in the face of massive suffering. It calls into question all the other things those pundits and politicians have said. Even worse, it means their "enemies" were right.
That's a lot to ask of anyone, and most people won't do it. But getting vaccinated to save their job or be allowed in WDW? Yeah, they'll do that, especially if it allows them to hold onto all their other beliefs.