That's not how I saw it...to me, she saw that Plutarch was mouthing the words of the speech along with Coin, just like she had done with President Snow's words. It's a parallel! Coin would be a dictator, just like Snow.
fan art, la ragazza di fuoco e il ragazzo del pane
I don't want to lose the boy with the bread.
“Rue's death has forced me to confront my own fury against the cruelty, the injustice they inflict upon us. And for the first time, I understand what Peeta means. Rue was more than apiece in their Games. And so am I."