A judicial review at Federal Court is totally different from an appeal at the refugee appeal division. Judicial review at Federal Court first has a leave requirement. You have to ask permission of the court to even hear your case. Also, it isn't a full appeal, so you can't present new evidence. It's not a full appeal on the merits. Even if you win at the Federal Court, they can only send it back. They don't have the power to say that you are a refugee, as the refugee appeal division does. They also, most times, are reviewing on a reasonableness standard. They're looking at whether or not the decision was reasonable, not whether it was correct, because they don't have the power to say that you are a refugee; that's not within their authority. So they're fundamentally different.
On top of that, people who are rejected from the PRRA don't get an automatic stay of removal while they're filing leave and judicial review at Federal Court. You cannot be removed when you appeal to the refugee appeal division, nor can you be removed when you judicially review a negative decision of the refugee appeal division to Federal Court.
What will be granted to these claimants is totally different. It's what is lost to these claimants, really.