Who came to that conclusion? The exterior of the HKS design was great IMO. Inspired by the general English football stadium packed into a modern shell. It had a single tier Kop wich is what everyone wants to keep in a new stadium, even the roof was designed to amplify the noise... The stands close to the pitch... The corners were left open yeah, in "retrospect" it makes for an easy expansion later on. But again, its never been built, why wasnt it a good football stadium?