That's a bit naughty. Was it presented as kind of 'opportunity cost' option then? "If you have this then you can't have that". (I'm not a STH so I didn't see it).
It's a bit like the government asking us if we want money spent on Education or the NHS.
Surely the survey was only sent to STHs in the North Stand? I would imagine if you asked someone from WSU for example if they would like a Standing option the answer would be an emphatic 'No!'
EDIT: Having read the posts after yours it seems that, no, they asked everybody. The outcome then is...