Spot on. $6M/annually is not much of a saving for a company like Uber ($130B market cap). It only makes sense if it's also more efficient and actually improves the app.
Yeah in one quarter from a quick google it looks like Uber profits $1.6 Billion. Basically why I never thought about cost savings projects after I learned to put things into perspective.
People really struggle with large numbers in business I've noticed.