While we can easily assume that they were violating the rules (and quite possibly were), there have been many times that we've done group meet ups in our room or watched other family members kids so that the other couple could have a dinner out to themselves. Things like that could give the image that they were violating the rules.
We often get 2 studios (family of 6) because its fewer points than a 2 bedroom, so morning meet ups in one room could give the appearance of over crowding a room beyond capacity.