Why Would God Make a Complex Universe?

While perusing Alexander Pruss' blog, I came across a post in which he offers this quote from Aquinas:

Hence we must say that the distinction and multitude of things come from the intention of the first agent, who is God. For He brought things into being in order that His goodness might be communicated to creatures, and be represented by them; and because His goodness could not be adequately represented by one creature alone, He produced many and diverse creatures, that what was wanting to one in the representation of the divine goodness might be supplied by another. For goodness, which in God is simple and uniform, in creatures is manifold and divided and hence the whole universe together participates the divine goodness more perfectly, and represents it better than any single creature whatever. (ST 1.47.1)

It occurs to me that this line of thinking could be used to support Swinburne's inductive cosmological argument, which goes like so: let "h" be theism, "e" be the existence of our universe, and "k" be our background knowledge (which in this case will consist only of logically-necessary truths). Since the physical universe is extremely complex, it is a priori very improbable that it should exist. However, Swinburne claims that God would have very good reason to produce such a universe, since he would be motivated to create embodied rational creatures, and such creatures would need a universe to live in. So P(e|h&k) is relatively high, while P(e|~h&k) is very low. Hence, P(h|e&k) > P(h|k).

Aquinas' aforementioned reasoning can, it seems to me, be used to substantially strengthen this argument. It does so by explaining why God would want to make a complex universe (such as we observe) rather than a very simple one, suited simply to the purpose of playing host to embodied rational agents. If all goodness involves participation in God (which it does), then (as Aquinas notes) the particular perfections of each individual type of creature can model the divine goodness in unique ways. This plausibly gives God good reason to make a varied and complex universe. This in turn raises P(e|h&k), thus strengthening the argument.