I suspect he was talking specifically about aviation and that is correct.
The board is interested in your academic background and potential to get through flight school for SNA/SNFO.
How a person feels about you has no bearing on your aptitude for aviation that is why they don't read them. If you are talking about IWC, CEC, or Supply then yes they will and they want ones from those that have supervised you. Ones from family, friends, or people that haven't know you in a professional setting for say a year are not worth anything.
If his recruiter is speaking about aviation then his recruiter is 100% right if the person has no non-medical waivers.
They take like maybe a minute for each application.
If you have a waiver you are ineligible for I-SEL, if the waiver is medical they only review info from medical professionals. Depending on the non-medical waiver issue they may review them.