Why did Drogon destroy the Iron Throne?

Why did Drogon destroy the Iron Throne? Drogon knows Jon killed his mother, but instead of taking revenge on him, the dragon turns his wrath on the Iron Throne and melts it into molten slag. According to Djawadi, it’s intended to represent Drogon destroying the thing that led to his mother’s downfall.

Drogon knows Jon killed his mother, but instead of taking revenge on him, the dragon turns his wrath on the Iron Throne and melts it into molten slag. According to Djawadi, it’s intended to represent Drogon destroying the thing that led to his mother’s downfall.