It's risk assessment, nothing more. Some weighed the risk high and paused their site. Nothing wrong with that and not hysteria or FUD.
No security expert can or should work that fast. Its a completely reasonable thing to do given the hyperbolic reporting just in case it turns out to be true. Some websites being down for a few hours doesn't end the world
> Some websites being down for a few hours doesn't end the world
Many governmental websites are still down and they say might stay down for days or weeks. Some are not directly related to PHP, but auth doesn't work due to firewall hardening or similar. There definitely is a non-zero downside.
There was no check that could be trusted to be the check to mitigate it. So that left the scenario that we went through.