I'm not sure whether Gerber give two hoots about whether their intended market are actually allowed to use this product, they just wanna sell 'em!! Also I think it's more aimed at the American market as at the moment their knife laws seem less restrictive than here (please correct me if I'm wrong , I know the laws vary between states).
At the end of the day, knife manufacturers need to sell knives in any way they can, so if their market research found a BG endorsement would help sell more units then I guess that's why they're doing this.
From what I've been finding out the laws here in the states are much less restrictive. The thought of having a reason for carrying any of my knives has never occurred to me. I'm not going to strap on a sheath knife until I'm already out in the bush and about to leave my car. One of my favorites is an Uncle Henry hunting folder that came out in 1972, that I got from my dad, it has a 4 inch blade and locks. From what I understand and I could be wrong, if in the UK you are caught carrying that yhou have to be fully able to justify why you have a blade that long and a blade that locks.
The BG knife from Gerber looks very much to be targeting the survivalist mindsets here. Which typically means the guys and girls who love the gear but never practice and truly don't know anything about life in the bush, this is not to say that some of them do know what they are doing out in the woods. The knife looks "tacticool" and that will create sells. I can think of atleast 5 guys I know who will buy it if they have the money just because it looks cool.
As for the serrations on the blade I like them on some of my folders when I know I'm going to be cutting ropes as it does make it easier and faster. Putting it on a survival knife I don't fully get it as it's not going to be incredibly useful out in the bush. An actual saw blade on the back edge of the knife would be much more useful as a serrated edge isn't exactly going to be useful for trying to saw through limbs.
I really don't like this knife though and a lot of it is coming from an ascetic view point I just think it's an ugly knife. I do like the diamond sharpener built into the sheath.