Whether you believe in Luck, (Good or Bad) is really not the issue, It only becomes an issue if you try to rely on it. Fish usually do rely on luck, making that runner/runner connection on the Turn and River giving them the better hand, Talented and better players will fold at such draws, and wait for a better opportunity to make their move.
I believe in lots of things Like Good versus Evil, Heaven and Hell, even Good Luck and Bad Luck, because for every positive thing in life there has to be an opposite, Like a "Ying Yang" philosophy, you cannot have one without the other, With Poker however, you only rely on luck when you go all-in, Pre-flop, because at that point you are relying on the Poker Gods to smile on you and give you that win.
It's a Coin toss whichever way you look at it, Heads or Tails, Ying vs Yang, Good Luck vs Bad Luck, But whatever the outcome, you need to accept it as being just part of the game, otherwise you start thinking about "conspiracies" or "game rigging!" Then you have a problem!
Doyle Brunson won 2 World titles on 10/2, not because it is a great starting hand, far from it, but he had so much of a chip lead over his opponent, doubling him up would not hurt his stack, I have had a similar experience with 6/2, calling a players all-in without looking at my hand simply because I had such a big lead over him, nothing he could do would damage my stack by much, and I beat his AK suited by pairing my 2 on the River, No maths, No strategy, just pure dumb Luck! Good for me, Bad for him.