no, bad idea, removes particularly useful strategies from towering

if they added this then when I'm towering at DW, Castle, and Swamp, I can't kill my 4 brainless guild mates who are defending the flag at 0.5 and thus force them to defend more intelligently by returning to the flag room with full health
also wouldn't be able to deny kills from PKers at Sardon's

also serves as a good way to punish "abuse" of weapon spam
Sard's halls would be even more dumb if you could just spam arrows and bombs all day long without them hurting guild mates