Which is indeed the case here. Why people would prefer one to another? Cheaper, or more drivers or both. Brand? Simply don't care, and Uber at this point has a notorious one. If there is demand (from both drivers and riders), I guess it take several months short to fill in the void Uber has left there.
I think ride-hailing service is meant for local companies to excel(public relations, better communication with government and compliance with regulator), Uber simply cannot enjoy the level of monopoly Google and Facebook have, because at its heart, it is not a tech-driven business.