a coroner found child protection agency broken and fundamentally flawed .
chloe valentine died from head injuries in 2012 after falling off motorbike .
she was forced to ride it by her drug addicted mother and her partner over three days .
coroner condemned families sa 's dealings with chloe 's mum .
their interactions involved a ` history of drift , irresolution and aimlessness '
coroner recommended 22 changes to the government .
grandmother belinda valentine said the families could now move forward .
` the sun will rise in the morning , even though we do n't want it to '
` we are actually the lucky ones , because we had chloe in our life '