Sort of, if Uber charges the card at the start of the trip, you might be safe, but what if they charge at the end? Somebody still owes somebody else a lot of money.
With fine grained limits on certain types of transaction you get more security. Markets now are very scalable and there is little to stop an exploit ordering pizza from every shop in a 20km radius, or a thousand tonnes of crushed rock from a quarry. But it should be fairly secure to stop the transaction at the bank.
