The problem with priming with the starter. Is it takes a long time to reach full pressure. You crank for an eternity with no pressure. Lobes, dry, bearings dry, piston walls dry. When you finally do have pressure, the damage is done.

I also am pretty confindent some things like rings and piston skirts will never get oil from cranking. That's why prelubing and an INSTANT FIRE UP is important.