Maps like Hamburg and Ettelbruck station are very poorly designed in my personal opinion... but somehow they are also pretty popular (veto-rate is not high) so I guess we will never see those removed
I have no idea why Hamburg needs to have those canals that throw any flanking possibilities out the window. The routes and the space is there, but there's nowhere to cross. I guess the lower ranked players just like to sit at a bridge/chokepoint or throw units at it. Perhaps it's The Scheldt syndrome.