This is a statement that I agree with 100%. It's not just the haphazard pile of logs, but the entire enclosure is a mish-mash of exhibit techniques and is rather bizarre in appearance.
I wouldn't term it dreadful. Its a bit scruffy and the attempt to give a 'temple' look to the background doesn't work that well (there aren't any abandoned temples in Gir Forest btw, its open thorn scrub forest in a semi-desert setting,more like the African bush and without the classic Indian jungle 'feel').
Despite the photo stretches the length, its roomy and, by Chessington standards, adequate, which is about the level of most of their animal exhibits.