Any redesign would have to be carefully thought out, otherwise we will get something diabolical like Thorpe's new map!
Whilst the navigational use of Alton's map is perhaps a little odd, I wonder how many people actually use the map as a map? To me it seems they are used more as souvenir pieces. The app provides a far clearer map for actual navigation, along with the benefit of queue times being listed.
For all the things that have been cut over the years, it's kind of nice that this is still something that exists.