Those aren't the only 2 possibilities.
Insufferable critics and incompetent moderators: There are two possibilities here. 1. Fisher is in shape to run sub 4 and his coach spoke the truth; or 2. His coach oversold his current ability by a second or two.
Do your forum a favor. Remove stupid posts that have a chilling effect on participation by star athletes and coaches. And apologize promptly to children when your low brow clientele take pot shots at them.