If you look at the breakdown of the payment you see that there is a one off payment of £8m , which I assume includes damages to the parents for stress, loss of earnings, plus wherewithal to buy a fully adapted house etc etc. it sounds a lot but a lump sum is needed to set systems in place.
Then there will be annual payments of £200,000 plus for ten years. If you take into account the loss of earnings for the parents, plus the cost of carers, additional living expenses etc that doesn’t seem overly generous to me.
Then further annual payments in perpetuity for the child, adolescent,adult the girl will become. Again , a life time of 24 hour care, living expenses etc.
It sounds a lot, but how much do you think Michael Schumacher’s family have paid over the years he has been alive? No one knows this child’s life expectancy, but she deserves good care.