There was plenty of pandemic fiction already; people were watching it heaps during 2020. The COVID-19 news
did get blown off, but it was mainly that:
1. Normal people assumed the CDC et all would contain the outbreak early, or that it would burn out, like what happened with SARS
2. World leaders brushed it off for a variety of subreasons[0] interesting to political scientists but, for the purposes of this discussion, all boil down to "but I don't WAAANA contain a pandemic."
The underlying problem is that in order for humanity to actually deal with a catastrophic risk, the risk needs to be both plausible enough to the average person as well as have a solution whose costs are not too high. For COVID, by the time the risk was clearly known, the cost to contain it was "refrain from human socialization and remain at home for an indeterminate amount of time plugged into the Metaverse™".
Now, let's look at AI extinction risks:
1. People are aware of them (I've watched Terminator!) and the risks are plausible. However, the connection to currently existing AI is not. As far as the general public is aware, AI is that thing that tells them to eat rocks when they Google old The Onion stories and floods their social media timelines with realistic-looking pictures of Shrimp Jesus.
2. The purported solutions to extinction risks require extreme concentrations of power: you need national control of AI research, bans on large GPU deployments, bans on training on publicly-available copyrighted data, some kind of military effort to render Chinese AI labs inert or dead, etc. Some of these may be attractive to some people[1] but the whole package taken together seems like an obvious power grab, if not outright invocation of other non-AI extinction risks. Like, at some point, if the AI wants to kill us, it just has to nuke its own data centers (or the data centers hosting a competing model) and hope the old Cold War nuclear retaliation systems take the bait.
If someone said, "Hey, your guinea pig or pet rat is going to eat you tomorrow unless you engineer a pathogen that eradicates all rodents from this planet and inject it inside yourself", you probably would tell them to pound sand, even if it is at least theoretically plausible that such a thing would come to pass.
[0] Xi Jinping censored initial discussion of the pandemic as fake news. Donald Trump thought it was going to only affect China. California and the UK Tories were partying in violation of their own lockdown rules. Japan took the excuse to shut down tourism for three years and massively restrict immigration but was, from what I'm told, constitutionally prohibited from implementing any domestic lockdown rules.
[1] I personally would like to see a moratorium on new data centers and an explicit revocation of the EU Text and Data Mining copyright exception