I wouldn't call Ms _ _ su pathetic. Actually, I wouldn't really call anyone other than a criminal a 'pathetic' person -but then again, unlike you, downgrading others is just not my way of dealing with people with contradictory views to mine.
What I would call Ms _ _ su is a poor orator. She knew things, but found difficulties expressing them to her classes, and hence confused 99% of her students (her non-English speaking background didn't help her either in this case). Thats a far cry from being 'pathetic'. Plus, she gave me straight A's, so I liked her marking.
I'm ending this spat here (although you are free to -1 as many of my posts as you wish). Good luck with your language analyses.