Indirect method and its forecasting approach (Coming up with a forecasted Net income)

Hi guys,
In the curriculum, i can read that the advantage of calculating CF from operations is its forecasting approach in the sense that i begins by forecasting a Net income.

I never heard of that with my prep provider, and i’m intruigued to understand how is this even an advantage. Why wouldn’t we just simply use the reported Net income to infer Cashflow from operations?

Thanks