If, by "it", you mean the accuracy of the headline, then yes. If, by "it", you mean the availability of the poison, then no.
We live on the largest planet in our solar system, if you apply the appropriate qualification; just like this poison is the second deadliest, if you apply the appropriate qualification.
Right. Overall it's the fourth deadliest, with an L.D.50 of 300ng/kg, behind Maitotoxin (130ng/kg), Polonium 210 (10ng/kg) and Botulinum (1ng/kg).
Is that supposed to make it better?
> a person who was poisoned had an opportunity to figure 'oh i dont feel well', went to a hospital, made it to the hospital, and survived
A person who was poisoned with a low dose of aerosolized palytoxin survived. Injected, you would not stand a chance.