Monotheism more parcimonous than polytheism?
Let's suppose it's certain that the Universe is designed by someone intelligent, and let's suppose we have thus only these possibility:
(1) This designer is one deity that knows absolutely everything about Universe, its mechanism, and how to make it.
(2) This designer is in fact plural: the contribution of several deities (each of them is limited to its own domain of competence); where a deity designed planets, another designed stars, another designed humans, and so on...
In that case, some theist apologetics claim that since the 2nd hypothesis makes more assumptions than the 1st one, then in virtue of Ockham's razor, one must prefer the hypothesis of a Unique designer, which is simpler.
Are they correct in thei reasonings?