Given there has been no official comment on this flight model behavior am I to take it that an F-105 pirouetting on the taxiway is considered by the mod makers as "normal"?
Though not shown in this video, I also found that in the air if one stands on one rudder pedal the aircraft will just start yawing in that direction until it rotates 180 degrees..
In short the flight model exhibited by this latest version of the F-105 is purely arcade level.