That's a pretty low-quality article. They couldn't even get the location right, despite quoting a tweet from NSF with the correct location.
SpaceX has yet to provide an update on the explosion, which took place at its Boca Chica Starbase facilities in southern Texas.
NASASpaceflight wrote, “The raptor testing stand at McGregor experienced an anomaly a few moments ago."
If the author can't tell the difference between SpaceX's Boca Chica and McGregor facilities, I'm not sure they should can be trusted to report on the situation accurately.
One of the purposes of the engine test stands at McGregor is to push the engines to the limit and see what happens, so that such failures don't occur at Boca Chica.