How fortuitous for the BBC that such an article would appear, and that the police have referred themselves (yes, referred themselves, fancy that!) for investigation. The legal proceedings which Tony has allegedly brought against the BBC may now be delayed, and the public support which Tony has, may suffer a slight dent (only amongst the dim, so no great loss) as some of them wonder "What if it was covered up because there was something in it?". This is probably exactly what the BBC wants people to wonder, of course. Anything to detract from the fact that one of the most prolific and depraved sex offenders, and possibly worse, worked for them, seemingly unchecked, for many years. The vast majority of people are clued in, much to the BBC's chagrin, probably, about what kind of man Tony Blackburn is, and legions of people can attest to his propriety and professionalism.
So yes, the police referred themselves for investigation, eh? Remember Tony was interviewed on BBC Radio 4 and said that if there was an allegation at the time, then he indeed should have been investigated? Well, how kind of the police to kindly oblige, all these years later. I can just imagine the big bosses at the BBC: "Oh you think there should have been an investigation? Well now you'll get one alright! See how smug you feel about your legal action and your public support now!".
The Mirror article is so carefully worded - one can just imagine their lawyers going through it to ensure clearance for publication. It would be laughable if it wasn't a 73 year old man's life, family and livelihood being affected. And for what? His recollection of events being different from the BBC's.
Other broadcasters such as Iain Lee, Danny Baker, and Martin Kelner also know what it's like to be treated shoddily by the BBC, so Tony is not alone. They will probably recognise this new development for what it most likely is, too.