The only vectoring on the STOVL F-35 is the articulation of the aft nozzle. This also requires the opening of numerous panels on the aft section of the aircraft which could not be done in high speed flight. The doors would rip off.
So then, which is it? Is there thrust vectoring on the JSF or not? If so, why did you say that there was none? Thrust vectoring originated on the Harrier, and is being utilized in the next generation of fighters because of its well-known capability to enhance maneuverability. That happened as a result of the Harrier whipping superior airplanes on dogfights. Since you seem to be unaware of this, your credibility is in question.