Sorry, but saying it’s “probably wrong” means nothing unless you represent ANet. People should be demanding an answer from ANet, not speculating what they think. That way you can say it IS an exploit (or not) and report it as needed or at least try to educate people on your server correctly. After all, they’re the ones who can ban people and we’re the ones who paid for the game. I know I would bekitten if I get banned for something they didn’t care to reply or fix.
Related to that, I would also like ANet to say something about every area and siege skill effects ignoring walls and floors. Lots of people saying it’s an exploit but every WvWvW you’ll find people using that specific “game mechanism”.