While I honestly think the OP is a little too concerned with the weapon designs at this point, I'll also be honest and admit that he does technically have a point. However, this really isn't something new in terms of bad designs for Bungie, as there were a few things in the Halo universe that made no sense in terms of design, an example of which was the Military Police helmet in Reach that had the visor situated way too low for the wearer to actually look out through. Thus, my advice would be to let it go, because if you focused on bad designs, all of Bungie's games would have something to annoy you about.