The reason why the HBO series “Chernobyl” is released now (as it’s not linked to a proper anniversary) is because Rosatom, created in 2007, became a dangerous competitor to the US, France and Japan in the area of nuclear energy.
Rosatom became a powerful player, especially after the sanctions introduces in 2014. And suddenly, the series tries to show how wild, stupid and careless Russians are, causing an unprecedented ecological catastrophe in Europe with sloppy built reactors.
No evidence given.
According to HBO, Chernobyl, a "five-part miniseries co-production from HBO and Sky, dramatizes the story of the 1986 nuclear accident, one of the worst man-made catastrophes in history — and of the sacrifices made to save Europe from unimaginable disaster".