Most fish are caught outside of Bali, then brought to Bali to be shipped since the flights are better with more connections. Most likely, not many fish are actually caught in or close to Bali. I know most of the exporters get fish daily from collectors who travel for days to dive then come back... Who knows where they actually go except maybe the exporter. But there isn't a difference between a green chromis caught in 10 feet of water of Bali island, or 2 days away at a remote island, so everything is labeled "Bali".
Bali is better than philippines for the most part.