[AndyBare]

G43: ROBOTS on the same half of the FIELD as their ALLIANCE TOWER may not interfere with opponent ROBOTS attempting to traverse OUTER WORKS (regardless of direction). A ROBOT is considered traversing the opponent’s OUTER WORKS if any part of its BUMPERS are within the opponent’s OUTER WORKS.

So by this, we know that "A ROBOT is considered traversing the opponent’s OUTER WORKS if any part of its BUMPERS are within the opponent’s OUTER WORKS."

But the rule, however, also states that "You may not interfere with opponent ROBOTS attempting to traverse. It doesn't say they have to be traversing. If they're in contact with a defense, I think it will be obvious that they're "attempting to traverse" the outer-works.

Hope maybe that this clarifies the issues with how the rule is worded?