I think we're missing the point here anyway
They want to demolish 80% of the site, instead of all these beautiful old buildings being converted into something useful they're just gonna knock most of it down and then again we would've lost a huge part of are history regarding mental health and treatment (the simple fact that they want to demolish the majority of the site should be enough for most people to want to oppose this process)
80% of the site is either not listed and utterly wrecked, or listed but sadly beyond any financially viable restoration.
You're not going to get a developer pissing money into the wind trying to save parts that have no hope of realising the costs back. We are lucky that the council removed everything from the front blocks and re-roofed it a few years back or else it might all have been on the chopping block.