No this was not a stated purpose of the insolvency laws as far as I am aware and I have read the 2012/2013 Acts a number of times. the legislation was to help those with unsustainable debt including mortgage debt to reach solutions with their creditors. In many cases these solutions could include the sale of the family home.
It seems strange to me that Section 115A of the Insolvency Act would have been introduced if keeping families in their homes wasn't a significant consideration in formulating the Insolvency laws.