She burned the armies, not the civilians. If she was plain evil as you said, she would have disregarded Tyrion (and Jon's) advice to not torch King's Landing. She brought her fucking dragons, of course she was going to kill her enemies. What did you think she brought her dragons to Westeros for? To cook marshmellows with their dragonfire?
According to the initial plan, yea basically.
She's an invading threat who just brought a bunch of war mongering barbarians to the lands that is already suffering from the previous wars and collapse of major powers, and a few mobile BBQs.
She's the one pretending to be better than the rest of the rulers of the lands. I'm not damning her on the use of her weapons to conquer her enemies, I'm pointing out her character arcs in previous seasons and how she is getting more and more full of herself as time goes on.
Did you see the look on Tyrion's face? He knows he fucked up, he knows he just helped bring more death and destruction to the land and the same shit is going to happen over and over again.
She was hyped up by her crew that she was going to be better than the rest, that she was going to be the bringer of peace to the lands.
Well, how is that going?
Some people have decided Dany is horrible long time ago and just want to retrofit their views.
How is it retrofitting to view Danny as a questionable character seasons ago and see where buying into your own hype could possibly lead to not good things?