Of course it's relevant. I am certain that I am far from alone in expecting CPS to incorrectly take children more than 115/3.2 million = 0.0036% of the time, which means that even without knowing the exact percentage of the time that CPS is mistaken, I was convinced by those numbers that a random kid has a higher chance of being mistakenly taken by CPS than abducted by a stranger.
Are you telling me that even though you, like me, don't know the exact percentage of the time that CPS is mistaken, you expect it to be less that 0.0036%?
First we see from the data that CPS declared 2.5 million of those 3.2 as "non-victims" so we can eliminate type 1 errors from almost 80% of the population right there.
Of the remaining 700k it's not inconceivable at all that in a big percentage of cases there were actually significant parental problems. Frankly I bet that type 2 errors are much more common that type 1 for this population.