Bootle, you shoudnt confuse NHS payments with Social Services payment. People who need to be in care but do not need nursing care and do not have the means to pay for their own care approach Social Services to have their care fees paid partially or fully paid. If they own a house it may need to be sold to pay the fees.
People who need continous nursing care but are not receiving acute treatment (operations, dialysis etc etc) would previously have stayed in hospital in long-stay wards. Do you remember the depressing longstay geriatric wards of previous generations? The NHS has decided, rightly, that hospitals are not the right place for these patients and as they do not operate nursing homes they pay for these patients to stay in specialised nursing homes. This lady would not be expected to pay for her care if she were in a long stay ward in a hospital, even if she were the owner of the £900,000 house, because she needs continous nursing care. If the NHS choose to outsource some of their treatments that is their financial responsibility not the patients regardless of the patients financial situation.
More paractically, what if the mother were in an ordinary care homeand the daughter decided to sell her house to pay the fees. She puts her house on the market, gets a quick sale and quick exchange of contracts. The day after exchange her mother dies, having been in care for only a month or two. What happens to the daughter then? She has turned her life upside down, can only back out of the sale of her house at a substantial cost which she may not be able to meet, has incurred all sorts of other costs to no purpose as there areno more fees to pay.