Agreed. Getting back to the US from Bonaire seems well in hand. It is getting TO Bonaire that has the issues, mainly the 4h antigen test.
The US airlines are apparently getting it together for travel to the (European) Netherlands; seems reasonable to think they'll do the same for Bonaire through ATL by the time their currently-scheduled flights go. XpresCheck, Delta, KLM and United offering rapid COVID-19 testing for US-Netherlands services | CAPA