Again, I had to know way more about VFA shit as a E2 L2 guy than it seemed a VFA guy had to know about VAW/VS/HSL/HS/HSC/HSM combined.
I used to wonder why the VFA guys carried HARM but would come to VAQ guys for "how to" chalk talks after the brief. In large part it's because they carry SO many different weapons and execute SO many different mission sets. Now take the EWO/RIO/WSO out of the backseat and pile that all on one person (C/E). It made sense for me to know the HARM inside and out - it was my only weapon and I should've been the SME.