The key part of the court's analysis hinged on:
10. Reviewing the matter in court, a measure of clarity emerged, the upshot being that defendants deny infringement but they do not advance a case of independent design.
IN other words, If you try to copy my creativity - even in the US - you infringe. If you and I came up with similar works independently, you don't infringe.
This is not as surprising a result as some people say it is. The defendant was trying to copy the design of a hugely popular image. That's still infringement.