It took 7 days (a lifetime in news terms) for the BBC to get any piece out at all, and my feeling is that is only in response to complaints over the non-coverage. Even now the BBC still hasn't actually covered the initial story. It has only referred to the actual story in passing as a by-product of "transgender person has to step down".
The Green Party issued two statements on Saturday 25th August, about David and Aimee Challenor, followed by a statement from Aimee Challenor on Sunday 26th August.
The Sunday Times covered the Aimee Challenor angle on Sunday 26th August. BBC took until the Tuesday to cover that angle in their only story about it, in the Coventry and Warwickshire local news section. 4 days after the statements from the Green Party, and 3 days after Aimee Challenor's own statement.
We absolutely understood the seriousness and horrific nature of the convictions and followed it up as soon as we could
That seems unlikely since the BBC still hasn't reported on the seriousness and horrific nature of the convictions.
And the BBC did not follow it up as soon as they could. That is clearly untrue.
Having "missed" the court case about a 10 year old girl being raped and tortured, the BBC then took 4 days between the Green Party's statements about David and Aimee Challenor and reporting on the case at all.
To be clear - this is not one mistake. This is a serious of deliberate decisions that were taken by the BBC.
If you cannot acknowledge your mistakes and learn from them, then this will happen again and again. And the public will very quickly run out of patience.