This should depend on the gambler in specific, because some of us got to gamble because of this same instinct we've got from anything we are more convinced about, then we try to test them by gambling and know about how capable we've become to predict and guess right, sometimes as well, it may come as a test on us, to know how we could perform in gambling, then we make some decision base on the influence of what we are gambling about.
I personally think that gamblers' instincts can influence their gambling decisions, but it can only impact their decision-making, but I don't think that their instincts can influence the outcome.
Because no emotion, instinct, or strategy can tell us whether we will win or lose when it comes to gambling, the outcome, whether we will make a profit or lose, depends entirely on luck.