Of course it is, it's all cotton wool crap to make Joe Public feel safe, by the time that kid has grabbed the floating thing, run down to the area where you've fallen out and thrown the floaty thing at you, presuming that he has good aim and a strong arm, it's too late. Given that all the indications are the young girl at Drayton didn't drown, you could have the banks lined with staff and the result would have been the same.