Can you use them to communicate? Then, yes, they work just fine. Are they limited in what they can do? Of course they are, but when the entire country is largely offline, you'll take what you can get.

Nobody (I hope) is trying to use the other options to stream Netflix at the moment.

Would a Starlink setup be better? Absolutely, but that has also had issues, which meant that it wasn't an option at all. Hopefully are now addressed and Tonga will have better communications options. I'm pretty impressed by their ability to get a new ground station up and running so quickly.