From 1994 - 2004, I lived in Fiji and experienced none of the problems listed in the article, although there were other problems.
I had retired to Fiji. The reason I returned was that I became uneasy with the medical care available. I had assumed that in case of emergency, I could be immediately evacuated to Sydney, but it's not that easy. Even if one can easily pay for medical treatment in Australia, getting a medical visa is so difficult that if the problem is serious, one would probably die before getting a medical visa. A tourist visa to Australia is easy for an American citizen to get; one can immediately get an electronic visa on the Internet. And, one can easily illegally get medical treatment on a tourist visa of one looks well getting on the plane.
There was no problem getting along with the people in Fiji, and I did not live in a foreign enclave. However, although it would seem to be economical to live in Fiji, I found it impossible to ignore the problems faced by people with whom I became friends. Thus, I ended up paying school fees for people. Once I ended up accompanying a friend's wife to Sydney for urgent medical treatment, for which I paid.
Right now, I would not recommend traveling to Fiji; it is under an oppressive military dictatorship and traveling there would tend to support the dictatorship.