What the heck? XTRP is the only track where mass chaos does not happen.
XTRP is simply a straight line extrapolation of the storm's motion for the last (either 6 or 12) hours. It's not a model.
The "XTRP model" is merely an "extrapolation" of the current direction, if it were to never change. Provided as a point of reference.
XTRP is just an extrapolation of the current track. It is not a model.