"overhauling how taxis worked" is doing a lot of work in that sentence. I have a hard time seeing how that would've ever happened in the absence of something like a Lyft or Uber. That's an extraordinarily difficult task.
OTOH Kuala Lumpur is so much more accessible with Grab than before
Why would taxi services invest if there is no competition which makes them provide a better service?
Not everything is price. It would be interesting to see the outcome if ridesharing apps would exactly match the price of taxis.
There is a parallel universe where some tech worker came along and created apps and sold them to the taxi companies. That would have led to much better taxi service -- though still a monopolist keeping the number of cabs small to protect their own profits.
The couldn't have tried to be Uber either because the law didn't allow non medallion drivers
Uber and Lyft have been operating for 10ish years.
Cherry picking.