Not canon? It’s an eyewitness account! How can you discount that!?!?!?
And as for Nicholas of Myra, the only things we can say about him with any certainty is that he lived and he had some sort of leadership in early Christian church. As far as we know, he could have been an elf who chose to live among humans.
I am the Lead Software Tester on my project … at least as long as they don’t hire a second tester.