The only Season Championship that Orianna didn't dominate was Season 1
And that's only because she wasn't even available on the patch that Season 1 Worlds was played on.
Do you people seriously think she isn't an issue? She's been a top pick/ban in Season 2/3/4 Worlds. Everyone complains about Lee Sin being strong forever but at least he's been nerfed multiple times. Orianna has barely been touched lately