A designing engineer or team might indeed have a purpose in mind when designing something. But that isn't necessarily a limitation on the final product.
The team designing the BT99 likely didn't intend it would be used for anything except 16 yard singles and handicap American trap. Everything about its design is intended to increase its suitability for that. It doesn't even have a mechanical safety catch. But none of that means it can't be used to kill someone. I've never seen anyone here argue that guns can't be used to kill. By virtue of their design, they can all be used to kill someone.
The team designing a Ford Lightning probably didn't intend that it be used to deliberately kill and injure dozens of people at a Mardi Gras parade. Nevertheless, it proved suitable for that mass murder as a consequence of its design.
How something is used is the prerogative of the user...not the designer. Certainly not some unnamed Chinese guy a thousand years ago, as some here have tried to argue.
But....did you notice how
@Slartibartfast has shifted away from his "gun owners don't care about dead children" argument?