The single most dangerous aspect of Cobra is in fact to me the fact that it ends, and at the end of the policy if you are medically insufficient, you are forced to either do a one man group or go to a conversion policy. These HIPPA conversion policy premiums are so expensive that they make it impossible to afford them.
I do believe that it is a myth that Cobra policies are more expensive than their individual health counterparts, as if you are from a large company your premium is still considered part of that group so they are often more affordable for the older population who save money by accepting Cobra, not to mention the benefits are usually better.
This is coming from a health broker, so I can say with a certain level of authority. Of course every point in your article is spot on and I wouldn't argue with anything and only make this point as a supplement to your article, which actually was enlightening to me.

http://echealthinsurance.com/cobra.html