Earlier quoted context omitted.
As I said in another comment, at this level "literary criticism" is intended to develop rudimentary skills of textual interpretation. You learn what symbolism is and are asked to produce some examples. It doesn't matter what the poem "actually" means any more than it matters that you're ignoring friction and variable speeds and the changing mass of trains as they burn fuel when you work out how fast they're going in…
> at this level "literary criticism" is intended to develop...skills of textual interpretation But it is also at this level that multiple-choice tests about which bits of a text mean what (as the original article illustrates) proliferate. It is at this level that the textbook is the One Truth about what a text means. As one other comment points out, at this level there is no recourse but "authority" which is, ironica…
Unless you're prepared to budge on the first premise, there's nothing much I can say to persuade you.