Because of laziness/incompetence and they can’t help you any further.
That advice works much better in the US where that policy comes from.
They also redirect you to Wowhead and the comment section there, because again. they can’t help you.
There is a ingame feature where you can leave feedback, is there not?
Facts say otherwise.
Here I have a link just for you:
“discussion section”
Take your time 