I've always found it interesting when people use the experience and preferences of professional photographers as a guide when recommending a camera.
Over the years, I dealt with a lot of different users of cameras. People with all sorts of interests, levels of experience and requirements. And it was always clear to me that the pro level equipment was often much better suited to the experienced and very demanding professional than it was to most serious amateurs, even when the price difference didn't matter.
And as for the sales and longevity of F2 vs. F3 models? That was as much due to the expectations of the times as anything else. When you compare the times - F2 being current vs. F3 being current - one major difference was that during the F3's time there were many more areas of photography where the clients and customers who bought product from professional photographers were likely to accept the quality that then current 35mm film offered - the films were that much improved.
In addition, I would suggest that the sort of professional photography that makes/made use of 35mm film was the sort of photography where the practitioners tended to be younger, rather than older. The F3 was designed for the new photographers of its time. I would suggest that the F2 was designed as much as a needed upgrade for the older photographers who had been using the F as it was for the newer photographers coming into the profession.
All of this is of course speaking in generalities. I knew older photographers who happily upgraded to and really liked the F3, as well as younger photographer who sought out the F2 at the time of transition to the F3. But mostly, I encountered younger photographers who would never have considered the F, the F2 or the F3, because they had no use for their capabilities or complexities.