It seems to me that you're demonstrating that What3Words doesn't provide precise coordinates on the globe to 3 decimal places. This is not surprising, given tha

It seems to me that you're demonstrating that What3Words doesn't provide precise coordinates on the globe to 3 decimal places. This is not surprising, given that they don't intend to do that, they chop the globe up into squares and provide less precision with easier human readability.