In your comment about the child abuse scandal, you were replying directly to a comment about attempts to shut down the BBC News website; in that context, your comments are going to be interpreted as being about the whole organization, not just about a single issue. In that context, it's not justified to then dismiss counterarguments (for the continued running of the BBC) as unrelated.
I would have thought that policies and procedures for producing good programming content are unrelated to whether it is OK to cover up child abuse or not. You could run a perfect news organisation, for instance, but still have a bad record on child protection. The two are unrelated.
However, all the points you make are unrelated to covering up of child abuse by several presenters.