Benefits fast formula is returning same value despite not selecting the dependents for Medical Plan

Summary

Created a fast formula to force users to select the wife and atleast one child as dependent for 'employee+Family' but returns false positive for all cases

Content

The customer has a requirment to check if both Spouse and atleast one child have been selected if the Employee has chosen 'EMployee + Family' as the option. So we are trying to achieve them using fast formula. However,for any option we select,the values are returning as 1 whether we select the spouse/child or not.
This completely fails the validation. Please find attached the fast formula