Saying that all systems have intelligence == anthropomorphizing all systems IF AND ONLY IF you consider intelligence to be a uniquely human trait.

A more useful distinction for the realm of intelligence could be 'designed intelligence vs. grown/evolved intelligence' instead of 'artificial intelligence vs. natural intelligence'; however, stuff like reinforcement machine learning is then neither, or perhaps a hybrid form of intelligence. In the end the pragmatic value of the concept intelligence is low, both for systems as for humans.