I'm sure it has to do with legal issues. As you point out, Coinbase is very concerned about doing things right and respecting the law. I imagine that it's just a matter of time though until they're available in your country. Who do you buy and sell with in your area?
Also, for future reference, it you post the active link to your quotes, it's that much easier for readers to resource. Thanks! https://99bitcoins.com/coinbase-review-6-controversial-issues/