The article consistently qualifies it like "According to Christian tradition". Only the title is inaccurate. It even mentions that they're interested in finding

The article consistently qualifies it like "According to Christian tradition". Only the title is inaccurate. It even mentions that they're interested in finding out "how it evolved as the focal point of veneration since ... A.D. 326." Jesus was buried 300 years after his death? It's pretty clear on the fact that Jesus's body didn't really get put there and that it's just a myth.