It's an over-used glossy marketing word but the word 'vision' is important here. The Masterplan isn't just a load of shoebox houses contributing to urban sprawl. It is/was actually planned to be a decently-scaled development with facilities for residents more akin to a village community.
So what's now being proposed isn't an out-of-town supermarket; this is a centre-of-village large supermarket and carpark.
The vision for Great Parks responds positively to the site and surrounding area to deliver a high quality environment for new homes and community facilities with improved connections and access to green space.