Information reported by the Daily Mail and The Commentator making the BBC look bad is reliable? Really? The Evening Standard (part-owned by the Daily Fail anyway) is similarly as reliable.
The report you refer to was published 10 years ago and meant that "As a result of the internal BBC publication of the Balen Report, changes were instigated in the methodology of the BBC’s Middle East" (http://bbcwatch.org/the-balen-report-2004/). The results of the changes seem to be fairly reasonable (http://bbcwatch.org/bbc-responses-to-criticism/).
I am not sure that I find the evidence terribly compelling at this point. Do you have any more?