Very true. But conversely, KF-21 is supposed to be the plane that could continue using American armaments after F-16s eventually retires, although those planes have plenty of time before they would.Rafale has less string attach (much less ITAR components for example). We can operate them much more freely.
Having no strings attached usually comes at a cost, since French/European armaments are - generally speaking - more expensive due to the different economies of scale, although one could also argue some of them are more expensive because they are also more capable, eg. Meteor.
Anyways, for a non-aligned country like Indonesia, it makes ton of sense to have an ITAR-free option, especially if there already is a history of sanction against it.