I don't know why the journalist is blaming Google for this ("So why has Google killed this example of my journalism?") when it's obvious they're not doing this voluntarily.
Because the people in charge are terrified of Google, the Internet, and their citizens use of it. So the BBC, kowtowing as usual to power, but still with enough journalistic testicles to make some form of protest, blames Google.. in the hope they can get away with it. Rather than pinning the blame on the corrupt shitpile of lawyers and wonks who forced Google to do this in a desperate attempt to make money the deciding factor in information control and suppression.