Every single parent in this video loved their child as sincerely as you or I would, or do, love our children. They wanted their children to be well.
Good intentions are insufficient to keep a person from being a monster. A responsible person must work to make sure he does not hold inaccurate beliefs in order to prevent their good intentions from getting twisted. This is the failure of each and every religion: telling people it’s ok to be unreasonable.
And what’s more, it’s not just he cases in this video – there is no situation in which prayer, when something else could be done, is not neglect.