As a mandatory reporter, I know that here in Australia it is not possible to sue for libel (written defamation) or slander (spoken defamation) in response to an allegation of any form of child abuse or neglect that is made in good faith, or of factual coverage in the news media of such allegations having been made. I believe, from what some teacher friends tell me, that the same is true in the USA. This legal protection of persons reporting possible child abuse is necessary in order to ensure that those who are able to report - whether that be the child themselves, or a family member, neighbour, teacher, social worker, sports coach, religious official or friend - are able to do so without fear of being intimidated, harassed or threatened into silence, or forced into retracting their allegations, to the possible detriment of a vulnerable minor. The legal protection of factual coverage in the news media is the same as for any other allegation of crime or misconduct, and is in support of community safety and the public interest.
As TSL and Ms Brennan appear to have confined themselves to reporting the available facts and did not indulge in speculation or gossip, make additional allegations or pronounce as to Mr Coughlin's guilt or innocence, they would be considered to have reported appropriately and would not be open to a charge of libel. They would not be held responsible for what conclusions some people may have jumped to based on the facts they reported, any more than the New York Times might be.