QLDB doing a full table scan when using an OR across two indexed fields

Well, a team member just pointed out that it is not supported according to this https://qldbguide.com/guide/data-design/#transaction-timeout

 --Multiple indexed fields (VIN, LicensePlateNumber) lookup using the OR operator
 --Disjunctions not currently supported 
 SELECT * FROM VehicleRegistration
 WHERE VIN = '1N4AL11D75C109151' OR LicensePlateNumber = 'LEWISR261LL'

This seems like a bizarre omission.