Alright, but will I be disqualified if the Mac builds do not run?
Well, I can't say that for sure, but I don't really know of people snitching out someone who broke just one, not-so-drastic rule. I'd reckon you're pretty much fine, there have been people that do this all the time. Though, you definitely won't get as much plays, as Mac players do make up a significant demographic it turns out
So, thought it is against the rules, it's not that big of a deal, and it effects you more than everyone else, so I think it'll be fine.