Settle down bat, I'm not a BK anymore, remember?
I'll agree that 2 guys flying through each other is a bit lame, but at least they can't fire through each other. It's certainly not perfect, but it cuts down on griefing and unintentional collisions through lag and poor judgement. However, until such time as I see it happen, I'll refrain from saying whether it's fair or not.
But anyway, is what you have declared the solution even possible within the current collision model? If so, great, why hasn't HT ever bothered to set it up? Why not the CMs?