Yeah, every Apollo astronaut (including Skylab and ASTP) was a "pilot", even though some came from the Navy and about 1/3 of them didn't do any actual piloting at all. The LMPs on Apollos 7-17, the Science Pilots on Skylab, and the Docking Module Pilot on ASTP were really acting as flight engineers while the actual piloting was going on.
I think that was even the original term for that position until the astronauts objected.
"Flight engineer" would have been a less silly title than Lunar Module Pilot on Apollos 7 and 8, which carried no lunar modules.