In the claim in the article that they're inflating top line revenue growth, is the argument that they're selling a $100 ride but giving a $20 discount and calling it $100 in top line revenue?
According to the article they are not only doing what you describe, but if due to an error or customer service reason they refund the ride later that day, they still count it as $100 of revenue.
Couldn't they "double" their revenue by doubling their prices and giving everyone a 50% discount?