Did you chose a bank that has an international footprint (and would be forced to comply to FATCA sooner or later)? I'm not shocked about it. It is indeed true if you want to use a more local bank though. I heard that most neobanks in Asia (which tend to have higher interest rates) forbid US persons (as defined in FATCA) because they're focused on locals and don't want the overhead of FATCA compliance.