Russian media are inventing progressively more convoluted versions regarding Navalny poisoning to ensure deniability of their government.
This news clip does not blame Germany directly, because obviously there would be no evidence, but it is made to cast a shadow of the doubt and link Navalny to halting of the Nord Stream 2 project.
It is interesting they mention similarity to Skripal case and there are indeed similarities, but of a different kind.
Kremlin media are creating a barrage of conflicting theories to confuse their audience and make them doubt the most obvious conclusion to which all the evidence points – Putin tried to get rid of the famous opposition leader.