Correct me if I'm wrong, but wasn't the PRT having all its various underlings keep away from the Family as much as possible? Pretty sure Vista said something to that effect.
When she visited.
Yes. The Wards specifically. So?
...
Oh, let me guess... Dinah.
Besides what Mr. Author said, the order applies to the
Wards. But
not their civilian identities. People with no apparent powers do not fall under those orders specifically. So Missy Biron
could visit BBFO without repercussions. Saying that the PRT can order officially Ms. Missy Biron not to visit the Family would imply she's under PRT jurisdiction, which would out her as a cape. That goes against the unwritten rules. So, theoretically Wards could visit BBFO with no repercussions, as long as their civilian identity does not get compromised as a Ward.
Of course, taking advantage of this loophole would bring "unofficial" repercussions on the Ward using it. Vista is a veteran cape and would never take advantage of it, because she's aware that while not breaking the letter of the order, it actually breaks its spirit. Cloak is not a loophole, she's actually a multidimensional and polidirectional way to take both the letter and the spirit of the order and make them their bitch.
Ms. Dinah Alcott, is not yet officially a Ward, and it's possible that no one has thought about making her
aware of the outstanding order against Wards visiting the Family. So, for the moment, Dinah Alcott can visit the Family, and the most likely outcome is that she will be told not to do it again.
EDIT: I was thinking a little more on Dinah, and... Well... The fact that her civilian identity has met the Family due to social relations, may make a little more palatable some irregular contact between them. If Director Piggot was a Coil-like devious mind, she might try to use that to "infiltrate" the Family and gain additional intel. But she is smarter than Coil, so I guess she'd maintain the order, and tell her to keep any interactions to a minimum, or at least to a socially acceptable kind of ostracism. Basically "yes, you know them, but stay away from them as much as you can". Because the abrupt change of behavior from Family Fangirl to ignoring them would arise suspicions. too.
