Maybe, maybe, but on the other hand all the other masks have been named for what they are/do: Mask of Control and Mask of Creation, though their details are fuzzy at the moment, can be determined to be masks that grant the wearer great control over something and great creative potential respectively. To my knowledge the elemental masks are named for their respective elements. As the Mask of Ultimate Power holds all the elemental powers that Makuta or Ekimou could put into a mask, it holds that it would grant the wearer ultimate, final, total and complete control over the elements. But yeah, a cooler name would be nice, just not sure how it would fit into a "naming scheme"(if it can yet be called such) wherein the name of the mask reflects what it does in relatively straightforward terms.