No, definitely don't bother reaching out to the inspector regarding your appeal.
It doesn't matter whether or not the inspector agrees or doesn't agree. The REAC Inspector who did your inspection will not be consulted on your appeal. The appeal will be processed by reviewers at REAC/HUD and will be reviewed based solely on the information provided with your appeal submission package. The REAC inspector is not included in the REAC appeal process, thus, the burden of proof is on you to refute the violations included in your REAC inspection report.