She wasn't entering a debate, she was speaking at a conference about housing she was invited to attend.
I agree with her. I live in a market town in which they are building thousands of new houses. Not houses that are suitable for families from the area. No. Mostly townhouses with no gardens that open straight onto the street as that is the way to get most housing in the smallest possible space and therefore most profit. One huge development with one or two more being planned for the next 5-10 years. Infrastructure and services (roads and schools mostly) can't cope already and the first estate isn't finished. Huge new estates make the most money for developers and land owners, they are not best for local people.