Not true. There is a film…
Not true. There is a film of oil on all parts and it takes days for that to dissipate and a long time before its really gone otherwise your regular starts would grind. I worked on Standby Gen sets, those started at 1800 RPM (required to get 60 hz) and we never had an issue in a weekly start despite that being a bit less than optimal oil wise (some have pre oilers, ours did not). Dirt is what kills an engine, not starts and stops.