Definitely got a help from his investment, doesn't matter how big or small, a help is a help. When you go for years, you are lowering the variance, the difference between 6 weeks and 6 years is the fact that 6 years has a bigger income potential and even a whale can't lose that much. So, let's assume monthly you could make 0.5% of your profit, and you reinvest your initial money back or something, can't really make a big math calculation for it so just hear me out with bad math .

If you wait 6 weeks, that is 0.75% income for you, someone could definitely come in and win 1% of all bankroll and leave, which means in 6 weeks you are still in the variance. But if you do 6 years, that is 36% profit and nobody can take away that much even if they are super lucky because game won't allow them.