A scheduling mystery

There was a late change to the BBC4 schedules last night, when many had been looking forward to a documentary entitled "Jerusalem: An Archaeological mystery".

This was the Guardian's preview....

Film-maker Ilan Ziv will likely ruffle some feathers with this documentary, which questions whether the Jewish people were exiled following the fall of Jerusalem in the first century. The expulsion of the Jews in 70AD, after a failed uprising against the Roman empire, has played a central role in Christian and Jewish theology. Ziv, sifting new evidence, casts doubt on this account, raising the question of what actually happened to the Jews, and exploring the impact this has had on the contemporary Middle East.

Is it possible feathers were sufficiently ruffled by such previews that the BBC was lobbied to re-consider ?  Viewers last night were offered instead a repeat of The Man Who Discovered Egypt.