There have been multiple discussions on Smogon over whether or not Pokemon breeded with hacked parents are legitimate or not, and for the most part, it seems they are unwanted. But the majority of these discussions seem to have concluded this on the fact that it is extremely difficult to get perfect spread children randomly, and therefore, people doing this have an unfair advantage.
With RNG, however, everyone has the ability to obtain perfect IV-spread pokemon. So what if the child Pokemon, a parent of a Ditto w/ a perfect spread and a random Pokemon, was created using RNG? Would they still be considered semi-legitimate/hacked?