When you look at the overall performance of the fund, why should I listen?

The selling point is that his fund performed very well, right? And therefore I should listen. But it only performed as well as everyone did in 2017. 2017 was a crazy year, for everyone. Compare the performance of the fund against the 2040 retirement fund? Who did better? The 2040 fund did. http://www.businessinsider.com/amazon-stock-in-long-term-portfolio-david-eiswert-2018-1