Earlier quoted context omitted.
Not if Amazon decides to use some of it's free cash to buy back shares... Share buybacks and dividends are the end game for all public companies. Profits don't mean anything if money isn't being returned to shareholders. Amazon's generous valuation means that long-term investors think they'll continue to grow, and someday they'll return money to shareholders...
If they never make a profit, how do they obtain the cash to spend on buying back shares?
So, the difference between that "virtual" expense and actual cash is one accounting category that free cash can come from. There are others.