I know this is probably going to be in opposition as much as it's for which suggests an optional behaviour however...

I would like (optionally of course since just as many people seem to want the opposite) for all of the children of a multiconfiguration job to contribute to the count of jobs in terms of throttling.

That is, if I set a category of "foo" and set it's throttle limit at 10 and have a multiconfiguration job that ends up spawning 7 child jobs (i.e. valid matrix intersections) I would like for those 7 child jobs to use up 7 of the 10 available "slots" for that category.