"Over the last 5+ years, Uber has grown by orders of magnitude, with our top line nearly tripling" Orders of magnitude.
He didn't say "Uber has grown by orders of magnitude" == "top line nearly tripling" They are two separate statements. Maybe some portions of Uber did grow exponentially. Riders, revenue, miles travelled, etc... He also wants you to know that as part of that exponential growth, top line nearly tripled.
Cannot be miles. Can't be riders. Can't be drivers. Revenue is top line, by definition.
This statement is as bad as the original. There is no need for hyperbolic statements that one doesn't even understand. "Uber has grown significantly" works. Why the need to sound so sophisticated and use terms like "orders of magnitude" ? It erodes trust by signaling "we are full of sh*t".