I mean as long as she is around, Superman will never be able to break free of the curse. He would fall into the same trap again and we're going to have stories repeated over and over again.
Besides, Lois Lane is manipulative and loves to boss Clark around.
Her death would signify that we would have better stories and Superman would stop saving her all the time, to the point that it serves nothing more than just a plot point.
Does anyone think that she should just have a Gwen Stacy death?