Whether a driver speaks English or not probably depends largely on where you live, not what kind of transportation you are using. I hear that complaint not only in Florida, but also NYC, Washington, LA, and SFO -- and the complaints are about both taxi and rideshare drivers.
Here in Miami, we have large numbers of both rideshare drivers and taxi drivers who speak little or no English. To make matters worse, many of the taxi drivers speak only Haitian Creole, and that is an adventure!
Drivers who don't speak English get by, but driving for anyone is more than just following the GPS. If you need to communicate anything (gate code, specific location at a mall, etc), or need to ask a question, a driver not speaking your language makes it tough. That works exactly the same for me, incidentally, with riders who speak no English. If they speak Spanish, I might be able to figure out what they're saying, but not always. But Uzbek? Nope...and I had riders from Uzbekistan last week.