It's hardly a new disease, it's been known since 1889, and in Hawaii since 1989. Hawaii is actually one of the more recent places it's made it to.
In most places it occurs, it's a relatively minor disease. The reason it is a major issue in Hawaii is due in large part due to social dynamics, not so much the biology of the disease itself.
There are some resistant/tolerant varieties, see here:
https://scholarspace.manoa.hawaii.ed...le/10125/51069
The most important thing to control it is to remove infected plants, and always source clean planting stock when planting new plants.