Should it Stay or Should it Go?

There is outcry in London. The River Thames has disappeared. OK, not permanently, but from the Transport for London Tube maps. They decided that the Thames and the payment zones created too much clutter so they were taken off.

I can't quite understand how taking the payment zones off a map makes it more useful as many of us we don't know where they are without seeing the map. And losing the Thames? Daft if you ask me. Which scarily means I now agree with the Mayor of London.