Yah i too have some experience with a lot of boxer engiens lots of subaru EJ series engines and never once heard a cricket sound from a fuel pump even though this is a HPFP and EJ series engines didnt have them.
i may or may not go and get it fixed right away id like a definite repair and then confidently go in and say hey this is a problem its been addressed and there is a fix so please repair it for me
again i dont want to be an annoying jerk person that keeps showing up with an issue id like to go in once have it fixed and be a happy camper.
dont want the hassle of going back and forth to get the same problem to come back.