I don't think anyone actually hates it, maybe they feel uncomfortable with the character, or don't understand the plot; but it is weird when someone complains because there's no cliches, in fact the opposite is more common.
But of course, it depends, when we talk about high school dramas it probably will contain cliches and some people like it or don't really mind, but not to the point of hate when those cliches are destroyed...
It's just my point of view, though.