I agree with you. What is wrong with more animals supporting these exhibits instead of non animal related gimmicks?It seems currently with each new exhibit at ZSL the themed aspect and 'set dressing' shifts up a gear. I think Tiger Territory is pretty good and the ancillary exhibits- 'watchtower' etc seem to fit okay too. But a whole 'village street' is going further still. I suppose their thinking is that if the Lions sleep 16 hours a day, they need some extra diversion for visitors to look at. But I agree the costly 'props' soon start to look tired and slowly disintegrate. Of course this is only a photographic mock-up impression- the end result may be a more simplified than it appears ( he says hopefully).
I fear that every new(major) exhibit at London will be increasingly heavily themed like this- its the direction they are going in. Not sure I like it too much- lets have the new big landscaped enclosure(s) for the Lions by all means, but preferably without the rest.
I dislike model dinosaurs in zoos, but this is even worse for me!