I am not a panentheist

In the past, while reading about panentheism I've had a hard time seeing how it's not simply a version of orthodox theism. That we are in God, that all our existence is a participation in God and that God is present in everything by his omnipresence and universal sustenance and causal concommittance are all perfectly orthodox ideas, ones that, for instance, any Thomist will embrace. Thus I thought that I probably am a panentheist if panentheism is understood as "All things are in God and God is in all things" (Matthew Fox). Of course, many panentheists would add to the above various unorthodox doctrines, but these did not seem to me to be a part of panentheism. However, I am now thinking, after a careful look at the rather confusing panentheism article in SEP that a core doctrine of panentheism is divine dependence on the the non-divine. And that's not compatible with orthodox theism, I think, and certainly not with what I think. So I guess I'm not a panentheist after all.