Anthony is a 95. He's been passed for the OHL draft twice. I don't think he had any interest in playing in the OHL nor do I think any OHL team was interested in him (or even a Q team for that matter). Odds are he'll play in the NCAA, if that much.
The Brodeur twins are both 96's. Even if they move (which is highly unlikely seeing as they're at an outstanding prep school) they'd have to spend 2 years of minor hockey in the area before they can be drafted or signed by a team outside of their territory (Taylor Hall moved from Calgary to Ontario at age 13-14 and played 2 years of minor hockey there before going into the OHL draft). Like others have said, they have to be passed twice in the OHL draft before they can go in the Q or dub draft (Claude Giroux passed in the OHL Draft twice and signed by Gatineau. However, I think Gatineau approached Giroux after he was passed the first time and he went and played Jr. B for a year then went and light it up with Gatineau)
I honestly haven't seen them play but those numbers look pretty mediocre, it wouldn't be the first time that a players last name got him onto the Shattuck team and its not like they are that exceptional of a team to begin with. I'm assuming the younger ones are on one of the prep teams still if anyone can confirm?