I had it really bad. I couldn't put any weight on my foot, and had to wear a boot. It took several months of stretching and icing for It to subside. I occasionally sleep with a boot to keep it stretched out.
That said, I really hope this isn't a ploy because he's unhappy with his contract situation. He had to go get a second opinion, so obviously the training staff didn't see it. Plantar Fasciitis can't be proven, it's all based on the pain the patient says they are feeling when the doctor presses on certain muscles in the foot.