I'll make the poker comparison again...one tournament is "mostly" luck...but the sum of 100 tournaments is "mostly" skill
same holds true for FF...any one given year is "mostly" luck...but if we were to do this a few decades and average out everyone's standings, we would get a sure list of who the most and least skilled FF players are
FF is all about putting the odds in your favor, that's all you can do, just like poker, you can go all in with AA and still lose, but the majority of the time you will win.
The players that give themselves the best odds to win might lose over the short term, but they will CERTAINLY WIN over the long term.
odds ALWAYS pan out over the long term...a Vegas Casino only has a 1% edge over the gamblers, and over the long term that small edge is a GUARANTEED PROFIT for the casino.