This ability creates a dimensional vortex that drags all nearby units to it, wrecks structures and instantly destabilizes infantry (kills them). The dragging of units is simillar to a magnetron's ability (though perhaps it is faster). Tanks that are drawn into the circle of the hole are not necessarily destroyed, although they do take significant damage.
Picture using this ability on a group of tanks near a shore, similar to chronosphere tank sinking this ability can drag them all to an impending doom.
If it can be used on structures (destroying them), then it would be a super power. However, if it would be a super power, it is unlikely that one would use the power to drag tanks into water, which was the original concept. Thus, perhaps this power does not affect structures (or infantry even) at all.