Then he could just say uber has grown a lot?
He could have said a myriad of things, but he chose to say that, and what he chose to say isn’t incorrect.
yes, it is. It's incorrect, misleading and douchey.
If they didn't say "revenue tripled" and you asked people to speculate how much Uber had grown in 5 years given the statement, you'd get a lot of guesses around 100x.