Considering your 'confident' attitude I assume you have the data for that. Care to share so we can critique?
Nah he's got nothing.
Oh except millions of documented operational hours on turbo compound radials and other big bore radials as used before the jet age.
The turbo compound engines fitted to B29s and Super Constellations went from 200 hrs- 600 hrs time between overhauls when run rich of peak EGT to 3,600 hrs time between overhauls when run lean of peak.
But hey what's a few million hours of documented evidence compared to pet theories , established old wives tales and information supplied by your lame / instructor God. It's the vibes.
Of course we should also ignore data generated at GAMI which uses the most advanced aircraft piston engine diagnostic machine in the world.