H1N1 is not covered mainly because it is just a flu... aka demam selsema.
In normal cases, demam selsema does not required you to be hospitalised unless it brings other complications like radang paru-paru, asma dsbnya.
The reason of patient being quarantine in the hospital is due to government rules to make sure that it is not been spread more to other people. Hence in most insurance policy of Medical & Health Insurance, it is under exclusion clause. Directive from government...
The patient itself can recover if it is just a normal flu, get the antiviral, go home and rest. They does not need to be in the hospital unless they develop other complication.
In the case of the writer in Utusan, he does not develop complication, therefore in medical terms, he only get demam selsema.
If the insurance company start paying for demam selsema, be prepare to pay a higher premium later on. Insurance is all about risk sharing, you want the company to cover for all small-small amount, then be prepare to pay higher premium for it.