I just listened to a Polish politician speaking on the BBC World Service. He claims the Russian ATC could/should have been more professional and should have done more to stop the pilots making the approach! The interviewer pushed him on that, saying "shouldn't the pilots be making that decision" or words to that effect, at which point he backed down, saying "I'm just a politician and don't know all the technical stuff".
What is he talking about? The plane was arriving to the Russian military aerodrome which not approved for international flights, without leader-navigator, only captain knew Russian language, clearance for landing wasn't been received!