For the slower audience, it’s a three-sided joke.
First, almost any time you see drivers being subjected to laws and local regulations, we love to beat our sticks and scream that we’re independent contractors.
Second, I have doubts that there’d be as much of an issue if a driver only spoke French or German instead of Spanish.
Lastly, as Jordan pointed out in the most lovely way, Google Translate exists. Drivers and pax alike have access to it because they have the smartphones required to use the app. Language barriers, therefore, are not insurmountable.