I think it would have that impact. One of the attractions of the system now is that even if you're turned down, you can keep appealing and having reviews. Somebody estimated that implementing the RAD would add another five months to the system. So I can see why immigration lawyers would love it--another chance for them to intervene in the process.
I think it's abundantly clear it will only make the matter worse. Once again, I think there is need for a provision for a substantive review of the merits of the case. There's a lot already done in that area, even though not officially, through the Federal Court reviews of cases. But unless you're going to look at the thing as a whole, let's not make it worse before we make it better.