The list is compiled by folk who can't be that into Sci-Fi, as much as I liked Leeloo and her red hair she's not exactly a character who shook Sci-Fi in any major way.
The mention of Rose from Doctor who just confirms to me this was wrote by someone with very limited knowledge of Sci-Fi.
Now if you consider Buffy Sci-Fi then to me it's Willow and not Buffy imo who did the most shaking of the Sci-Fi world.
Rose from Dr Who? now I don't watch Dr Who nor will I ever, but Rose is like what the 100th Assistant or whatever, just how is she special? how did she change Sci-Fi? I presume thats what they mean by shake?
Uhura kissing a white guy on tv during a time when Blacks couldn't use the same toilets as whites in some parts of the USA Kinda beats out anything Ripley, Rose, Scully and co done to shake up the Sci-Fi world.