Thanks - I know I can test it myself, but I was travelling without access to the game.
Just tested it - you are certainly right.
Question remains, why two different mechanisms for the same effect... (probably I should read the manual or the forum more carefully)
Both reviewers of Game of Thrones: War for Westeros asked for the same thing: bird's eye view. Beyond All Reason provides exactly that. I think 0 A.D. should too, together with keeping sizes as realistic as possible (that is, do not shrink ships like AoE and others). All those things should work well hand in hand.