You say there is 'literally no need'. How are you so confident in making such a claim for the rest of us?
I, as a consumer, would rather make that decision myself. If you don't want to use Google Maps that's up to you. I don't see why you'd force me to do the same.
As it stands, Maps falling under Google means that I and many others on this planet, from Africa to the Middle East to Asia and others, get to use it for free because it's subsidised by Google's search ads.
A standalone maps company would have to charge money to run the service. People around the world (along with businesses small and large) would be poorer if this were the case.
I defend your choice to dislike this state of affairs. But it's rather difficult to defend a proclivity to take choice away from the rest of us.