Have you read the article at all? It does not assert any pseudo scientific novelties ...

According to Shinto, water is generally full of dragons. So Shinto wins, because dragons.

Though maybe the dragons are taking down notes and have little first aid kits and stuff, so homeopathy might just be one of their dragon hobbies, or something. Would also explain the lack of support for homeopathy in large scale studies, as obviously dragons know if it is just an experiment.