See here's the controversial take. I don't agree with you at all. It was literally built up for the entire series and was the only natural conclusion. She was literally saying "I plan to break the wheel" from the start. That is not language a peaceful person uses. Her goals to begin with were those of a conqueror, and what we got was the natural end of that ambition when it crashes into reality.

I think it was done beautifully, and the fact so many people bought into her side of things and felt betrayed is evidence of how well done it was.