I think you have a very small and narrow interpretation of the LNC. If all you think it's about is keeping language logical, then fine. I'm all for that. But in terms of logical debate, as in a philosophical context, paradox and contradiction are now inevitable aspects of our attempts at grasping truth. These "alternative realities" are not going to be resolved by ignoring them, and pretending there must be one 'true' answer. Post-modern relativism is probably the greatest philosophical problem humanity has faced in many millennia. And maybe, EVER. It's been coming upon us for several centuries and we've been struggling with it. The more we come in contact with each other, the more relativistic (contradicting) we are seeing "truth and reality" become.
It's not merely about keeping language logical. It's also about keeping concepts logical/coherent. A thing is itself. A thing isn't not itself. These are fundamental axioms necessary to even form a coherent thought, including ones that are postmodern.