That's because the Super Bot Laser is bugged... When you launch a Kienzan, etc, and it impacts with the laser, I'm thinking it seeks a target to frag, and finds none. Because, you can't block the candy or Kienzan, and they instafrag, when they work... I was 4x the BP of a Kuririn and I tried to block his Kienzan, and I died.
Perhaps the team should add a line to the code where it handles frags...
if !(frag_var) return;
That way, when HL tries to deal with frags it will return when it impacts with say, a super bot laser, or nothing at all... THIS IS SPECULATION, don't beat me over the head or anything...