OP needs to be familiar with the language of mileage earning. From SkyMiles on AF earning:
Air France-marketed flights in the following fare classes are eligible for accrual based on the percentages in the table below, multiplied by the flight distance (as determined in Delta or the partner carrier’s sole discretion).1
(table deleted)
MILEAGE EARN ON/AFTER JAN. 1, 2018
Class Exclusions: If a class is not listed, no miles are earned. No miles are earned for Award Travel.
Every ticket booked in the last 30 years has an inventory fare bucket, YBMHKQ... (There might be 13 coach fare buckets aboard an all-coach 50-seat CRJ-200.) Fare bucket + applicable fare rule = price. Delta knows when you're on a partner award ticket - they exclude those classes from earning.
Can one, in IROPs, be rebooked into an earning fare class? Yes, I guess. I haven't seen it happen in more than a decade across Delta and American programs. The probability approaches zero.