Besides, won't they all be called "spherical heating elements" in the future?
With that pattern they showed rockets firing into each other
And what's wrong with that? Sounds like a sensible way to arrange propulsion around a mushroom-shaped pod, with all the flames safely pointing away from the stem.
(How does one get that NASA link to work? It's just giving me some sort of a permission denied notice no matter how I truncate it.)