Phat, I don't know where you got that source, but it seems to have a completely different definition of henotheism than any I've encountered.
sofiatopia writes:
HENOTHEISM : One in all Divine Beings & all Divine Beings as One
From the Greek "hen" and "theos", The One God.
Divine Beings or Powers cause the created order to come into being. They are expressions, Self-manifestations or theophanies of one and the same great God. These Supreme Beings, transcending and/or coinciding with the natural order, are interconnected, spring from a common source (before or simultaneous with creation), are not co-eternal from the beginning, do form a concerted Divine order, are not necessarily mutually exclusive. Although each has its own specific, irreducible domain, cooperation, interchanges and adjustments between these remains possible, although not necessary.
This definition, specifically the very first sentence, is nothing like the 'believe in multiple gods, but worship only one' henotheism I'm familiar with. In fact, this definition almost seems to be a possible explanation of the Trinity. Any thoughts, anyone?