I don’t know a huge amount about wardship, but as far as I’m aware the children can still remain with their parents, but major decisions are taken out of their hands. (For example, medical care or leaving the country.) JMOO, but it could have been linked to concerns around moving country and keeping the children isolated or the potential of refusing medical care.
Whereas in adoption, it’s a lifelong commitment to parenting those children. Equally, kinship care in a situation where children are permanently removed would be a long term commitment. Both sets of parents may have been not deemed able to to provide suitable care for the needs of the children (can be as simple as due to health issues or commitments like regular travel) or may have felt unable to take all the children and felt unable to take only one or two or have felt generally unable to provide for their needs. Social workers would have had frank conversations with them about the realities of parenting traumatised children, explained any difficulties they might have been having while in foster care and the kinds of issues lots of traumatised children have. They may have felt unable to manage those issues long term and felt that an adoptive family with a parent or parents who had gone through the process, committed to parenting children who’d experienced trauma and been introduced to PACE (Dan Hughes) and therapeutic parenting would be able to parent them more effectively.
Also, we don’t know what the trauma CM mentioned speaking out about was and whether that had an impact on any decisions around anyone. It could very well not have done, but I thought it should be mentioned.
As the set-up for both differs so much, I think that’s why they applied for the wardship, but turned down the full time care (or maybe were found not to be suitable).