I highly doubt that's point, SuperT, I think she is just very hurt and want the revolution to start ASAP and she becomes a revolution leader and want Snow dead, instead of more like the "I don't want anyone else get hurt so I am not gonna do anything rash" character of the 1st two movies. Cuz, it's moot, other people are already hurt, she has nothing to lose by becoming this revolution leader!
I would think people involved in a revolution has to be judged 'hateful' by other people, in some way.
But then again, I've not read the book, so that's what I am guessing.
However, if there are any tiny amount bit of the un-hating Katniss, I am not worried, cuz Jennifer Lawrence is an amazing actress, the director is great, they will of course show that side enough.