And who replaced the "Tsar and his ministers" rendering the devil so gleeful?

Establishment historians pay little attention to the remarkable impact occult and Gnostic ideas had on the rise of Bolshevism and the victory of the Russian Revolution.

A number of social and political movements, including Marxism and Lenin’s Bolshevism, have been linked to Gnosticism, which flourished in the early centuries of the Christian era. The political scientists A. Besancon and L. Pellicani argue the intellectual roots of Russian Bolshevism are a structural repetition of the ancient Gnostic paradigm. A distinguishing feature of Gnosticism is an illusive, symbolic interpretation of reality, including history.

For the early Christian Gnostics the Absolute – termed the ‘Unknown Father’– has nothing in common with the wrathful ‘God’ worshipped by theist religion. In fact, for these Gnostics, the ‘God’ of the Old Testament is the adversary of their ‘Unknown Father’, the true God. Our world, including all human institutions, is not the work of the true God, but of a false creator, the Demiurge, who keeps us captive in the world, away from the divine light and truth.

Therefore, in Gnosticism, the world is merely a sort of illusion, a set of allegorical symbols, a reverse image of the real essence of history. Man, who is asleep to his inner potential, must awake and become an active partner of the ‘Unknown Father’ in the transformation of all life. Otherwise he remains a prisoner in what the eminent Russian Gnostic philosopher Vladimir Solviev (1853-1900) aptly described as “a kind of nightmare of sleeping humanity.” A number of Gnostic communities – like nineteenth century communists – held contempt for material goods and lived communally, teaching “the world and its laws, religious, moral and social, are of little relevance to the plan of salvation.”
source

Sense a familiar tone anyone???

Is it any wonder why the devil would be so happy to see the "Tsar and his ministers" eliminated?

The entire music/entertainment industry brainwashes and mesmerizes even while revealing the truth to you with pure arrogance.