Don't worry about the lack of any appeal.
It was a "one off" decision based on only half the real evidence because Tango's owners and (pro bono) lawyers got "bushwacked" by the Council changing its case from "It is not an Amstaff it's a pitbull" to "Of course its an Amstaff but all Amstaffs are pitbulls", at the last minute (ie, on the day in court). The system let it get away with that. With hindisght, maybe Tango's team should have seen it coming (eg a decision some months earlier to walk away from D Pomeroy and co as witnesses should have sent up a signal of some kind).
If there is ever such a case again, the full history of AKC/UKC breed separation, the different strains that were bred or used for fighting (eg ADBA ancestors) and everything else will come out, and the legislation will be interpreted to apply only to dogs that come from stock that is or was bred for fighting. Now I know full well that that expression is also meaningless in many ways, but the point is that the legislation properly applied, even before the 2010 changes, does not apply to family pets who are, or are bred from, Amstaff or any other breed with a demonstrated history in the show ring.
Why has that never been argued or decided? Because every time a case has come close, the Council has backed away. They are the ultimate cowards in the sense that they bully until they are really stood up to, and they then run away. But so few people have the assistance they need to get to that point. They ACOs know full well what b/s they have been peddling. Unfortunately, every councillor I have spoken with about the issue, and there have been more than a few, is a mushroom, and not the sharpest mushroom in the compost heap at that. You get what you vote for - politicians. Now they should be a subject to "22 point" identification (1. Is unable to give a straight answer to a straight question. 3 points 2. Actually believes that some breeds are inherently dangeros they need to be killed, because a highly qualified ACO told them so. 3 points etc), and compulsory de-sexing, but I don't want to get off topic........