This is disgraceful and an incident that should never occur, it is abuse of neglect and is a safeguarding issue.
Is there a risk assessment?
From the article it does not state if safeguarding procedures have been implemented. The child is epileptic and as stated in the article could have had a seizure where the child could have died, then it would have been a police matter.
The article also does not say how the child is attending the Frances Wright Nursery while the investigation is proceeding or what the situation is regarding the staff who allowed this incident to occur.
The procedures and quality checks do appear to be well below an acceptable standard.