My teacher doesn’t use a “method,” either, and teaches intuitively. She’s big on learning patterns and theory, so that you can ignore the written music for the left hand and just make it up as you go. She says she never plays a piece the same way twice.
She’s still strict on technique, though, like hand placement and such.
If you live in Oregon, her name is Jewel, she teaches in Newburg.
There are some good harpists who were self-taught, and a lot who are not good. Osian Ellis is probably the greatest self-taught harpist and his playing is a bit strange. What’s wrong with benefitting from the knowledge of others? Why re-invent the wheel. Besides, playing the harp intuitively would require a very brilliant mind, ’cause, even with our methods, it still takes decades for us to master the instrument. Don’t worry about where the knowledge comes from. It’s the musicality that is intuitive, somewhat. Even that involves learning. It’s not weaving.