Since they are relying upon supernaturalism to begin with why all of the weaving of pseudoscientific BS into their arguments? Why not just be satisfied with supernaturalism?
Deep down they know that the scientific argument is the better and more rational explanation. Just look at how they use the word "faith" or "religion" as a terms of derision when talking about evolution. All of the time you see creationists claiming that evolution requires too much faith, or is just another religion. Not once have I ever seen a scientist or "evolutionist" proclaiming that creationism is just another science, or that it requires too much logic, reason, and evidence.
If you're saying that the sn1987 explosion HAD to have happened long before creation week, then you're doing two questionable things, 1) You're still trying to fit the supernatural act of creation into the very limited time frame that humans are capable of understanding, and 2) you're taking on faith, (accepting as fact) all the guesses and speculation about hundreds of thousands of light years, things that are not science, not falsifiable.
As you have been shown, the distance to SN1987a is based on measurements, not faith. Will you admit your error? That would be the honest thing to do.
Also, you seem to suggest that God included a fake history as part of the creation, a history that has no function other than to fool us. Is this really what you are claiming?