CPS must have some really good bases of concern since the judge kept the kids in state custody. The same judge who authorized the original "raid" on the basis of unsworn hearsay? From someone who was not only not known to the person swearing the affidavit for the warrant, but who in all likelihood does not exist, except in the mind of a known hoaxer?
Cops need to have "sworn here-say" now to respond to a call for help? Why it took them so long to respond is a mystery...well maybe not. At your house or mine, LE would have hurried right over. This was a media hot potato though. I guess they had to think about it.
That said.. the kids were taken because of what CPS saw after they entered.