Amelia won't be in a tizzy, necessarily. She'd be intrigued...and will want to discern the reasoning behind her unjustified ways. Simply because one's family was killed in the crossfire does not mean that everyone needs to suffer as a result. The grand scheme of reality is far beyond the small scope of familial loss, and while Amelia understands the pain of it, she doesn't understand the need to bring it upon others.

Simply because one apple is bad, does not mean the rest of the bunch is corrupt.

She and the Headmistress of Ravenclaw have many things to discuss.

A battle of wits perhaps, but then again, people so devout in their beliefs have no ability to change either way.