His numbers aren't even attempting to be correct, he's pointing out that in fact 0.5% isn't necessarily low. What it shows is there is quite an obvious strategy

His numbers aren't even attempting to be correct, he's pointing out that in fact 0.5% isn't necessarily low. What it shows is there is quite an obvious strategy for insurance companies to pursue which would have a level of 0.5% rescission but completely destroy the expectation that you be covered in the event that you really needed your health insurance.