It is not truly unique. Look at these Martian Spiders:
It actually also compares quite well with Tycho Crater on the Moon which is, under the electric universe theory, not an impact crater but an electric discharge "lightning" pimple—a huge one, but a lightning pimple none-the-less— with the striations approaching it the remnants of the underground paths of the amassing electrons as they rush to join the massive plasma arc leaving the moon.
Tycho Crater is raised above the surrounding terrain, and stria do not line up with point of impact.
Sharing another feature with the Mercurian Spider and laboratory created "Lightning Pimples", Tycho and the spider have a raised center peak.
Note the striations, that have always been explained as ejecta paths, do NOT point directly toward (or away from) the center of "impact." They cannot be ejecta paths which would follow a ballistic path directly away from the point of impact. Note also that the stria on the Mercury Spider also do not point directly away from the point of impact.
On the left: An electrical discharge to a negatively charged surface, recorded on a photographic plate. On the right: A Martian “spider.”