This is fanfiction, out of characterness is allowed and as long as it goes with the story I see no problem with it. A!A Did not butcher anyone, she chose to make some changes that may or may not fit the characters, but do go with the story. If you do not like it, no one is forcing you to read the story.

On another note you could have voiced your opinion in a much friendlier way (e.g. you would have preferred Skjor and Aela remained in character, or you believed their characters to be different or any number of things really), thus showing respect for the A!A working hard on this story.