Did you read my second paragraph at all? Stating how she did nothing at all from letting violence consume the entire city? Hell she more or less endorsed it. So one guy wrongs her so she let loose an entire faction of High Elves who wanted nothing more than to bring harm to the Sunreavers loose. She is Jaina she is on god tier level she could have done better, the whole thing could have been far less violent but she chose to turn a blind eye to the violence.
One guy wrongs you blame the entire faction/race. Humans are evil racists, see Garithos.