No. But you should expect it. Just like you should expect to be mugged if you flash a wad of cash in a dark alley. Just because people do bad things, doesn't justify taking actions to prevent them.
But actually, in this case, when you're a jerk, you should expect people to be one back to you.
I think the bizarre thing is that "kill one person first" is somehow "being a jerk". FFS, it sometimes happens entirely coincidentally. Or probably more often than not.
It's ######### backwards to expect the person who can't immediately see at a glance who's on what hookstates to memorise them for the explicit purpose of making it easy and fun for the other side.
Like, not only are you demanding that the opposition in this little competitive game of ours give up the most obvious strategic advantage they could get, it's also entirely their responsibility to memorise all the information needed to do this explicitly so that they don't? At that point you're basically saying that the killer's role is not to play the game and have fun, it's to do things properly.