Spark eroded crater or triple asteroid impact?

spark eroded craters edmA triple crater forming one strange elongated crater or an electrically spark machined crater?

What are the odds that multiple asteroids struck the very same place at the very same time?

The reason it looks so unusual is that it likely is a triple impact crater, formed when three asteroids struck all at once in the Elysium Planitia region.
Amazing Impact Crater Where a Triple Asteroid Smashed into Mars

Could EDM (Electric Discharge Machining) be a better explanation of how it and the ejecta material and pattern was formed.

“The ejecta blanket appears to be uniform around the triple-crater showing no signs of burial or overlapping ejecta from overprinting craters,” write scientists Eric Pilles, Livio Tornabene, Ryan Hopkins, and Kayle Hansen on the HiRISE website. “The crater rims are significantly stunted where the craters overlap.”
Amazing Impact Crater Where a Triple Asteroid Smashed into Mars

Could a simpler explanation be that the whole crater had been spark eroded in an Electric Universe?

This oblong-shaped crater could have been created from a triple asteroid, or it could have been a binary asteroid, and one broke apart, creating the three overlapping craters. The team says the two larger craters must have been produced by asteroids of approximately the same size, probably on the order of a few hundred meters across.

“The northern crater might have been created by a smaller asteroid, which was orbiting the larger binary pair, or when one of the binary asteroids broke up upon entering the atmosphere,” the team explained. “The shape of the triple-crater is oblong, suggesting an oblique impact; therefore, another alternative would be that the asteroid split upon impact and ricocheted across the surface, creating additional craters.”
Amazing Impact Crater Where a Triple Asteroid Smashed into Mars