"This Exoplanet’s Weird Orbit Can Be Explained By Known Physics And The Addition Of Something We Haven't Yet Observed" is much more likely.

In human rhetoric I've noticed that there is a tendency to frame everything as if what we know today is the extent of all that can ever be known. When in fact we are naive and limited creatures who have nonetheless come up with some pretty astounding theories that have held up against repeated cases where something appears to defy physics until we learn that actually we can use the same physics and a minor update to our visibility into the system in question.