Documentation is often wrong, incomplete, poorly written.
If you only have N hours to work on "documentation", I say spend it on examples.
Also AI can probably turn a quality example into a doc whereas it can't turn a doc into a quality example.
Another thing to contemplate. I stand here as a 75 kilo entity - an example. I am, IHMO, a good example. The documentation on this example is so far many millions of page long, is very incomplete, certainly wrong, and could not be used to create said example.