It's our fault ...
We insisted on giving the Whanganui River legal individual status and the same rights as a human being; now it seems to be flexing its newly-acquired muscles and letting us know where we fit into the hierarchy of things.
To be human is to exercise those emotions that make us a sentient being, and the river is doing just that. The trouble is, we haven't learned to recognise the emotions on display.
When the river rises, is it threatening, angry, sad, jealous, disappointed ... or just full?
Could its abundance of water be an exhibition of happiness and joy, perhaps?
Are we somehow missing the point, or does our newly-recognised human colleague need lessons in social skills?