I'm guessing ADA Programmer was getting phased out anyway (it disappeared in 2002). Or was there another programmer MOS around that time period? I don't know of any subsequent programmer MOS's. Some soldiers and sailors program now but those are very limited cases for the "Cyber" Brigades, and not on any table of organization.
In that case it sounds like the recruiter barely knew what went into O-level avionics so he or she guessed and said it was electronics-heavy. You now know that it's the I-level or Depot level techs that actually do troubleshooting with multimeter/oscilloscope, but only because you were involved in the Avionics field.