1. Active trooper declares Oblivion against R from outside LoF. 2. We measure to see if R is in ZoC. He is. 3. R declares Reset. 4. Active trooper moves into LoF of R. That's just the same ARO baiting that has always existed. Nothing to do with speculative declaration. OR 1. Active trooper declares Oblivion against R from outside LoF. 2. We measure to see if R is in ZoC. He isn't. 3. R can't declare an ARO. 4. If the active trooper now moves into LoF or ZoC, R will then be able to choose his ARO. No baiting happens in this case.
It's still useful in the ways that it always was. Basically if you want to move into LoF of an enemy without getting shot (probably to get into sil contact with them), you first activate outside LoF but inside their ZoC, forcing them to ARO before they can see you. It's cleaner now because we know sooner whether you're actually inside their ZoC.