Too circular, considering it orbits well out of the plane of the ecliptic. Scientists consider that it must have had a close encounter with another large body to throw it out of the plane of the ecliptic, but then by rights its orbit would be less circular, ie more elliptical. A circular orbit is thought to be a calm, quiet one, but here we have this new object which has a calm, quiet orbit, even after it has been violently ejected from the solar system. What gives?
The answer, as all Velikovskians know, is that there MUST be a way to circularize a crazy orbit, probably involving forces other than gravity - OR, involving properties of gravity we don't yet understand.
I predict a LOT more of these objects will be found, and someday science will have to properly grapple with these weighty questions...