I can't recall what year it was, but even when there were a minuscule amount of players, a complete random can still win.
Des Wilson recalled a chap who was absolutely clueless, but still won the Main Event when numbers were small, and subsequently disappeared. If this guy had won in the modern day game, people would soon be jumping on the bandwagon and saying what a lottery it is. Not true in my book. Yes, the numbers are tougher, but poker is a game where luck is always going to be prevalent, whatever the field. If a pro won the Main Event, is it not possible that he was lucky rather than just skilled in victory?
Hal Flower is the guy your thinking of Snoops the 1979 wsop me winner. What a weird story that is, my favourite chapter in Ghosts at the table.