The 3rd base coach cannot be real demonstrative. I might just say "go," in a low voice. But, the runner should have went unless the coach was saying "no."
The SS was going towards the middle to field the ball. Once the ball got past the pitcher Romero should have broke for home. There is no SS in the world that can make that play at home.....not with Romero's speed. I'm sure once Romero was on third Hutchins explained to Romero EXACTLY when not to run. It was a baserunning mental error on Romero's part.
Keep in mind who was guarding the dish. Aubree Munro is a force to be reckoned with, and is playing with some serious determination to lead her team to another championship. If Romero goes on contact, I'm betting she gets gunned down at the plate by Florida's SS. The ball was hit hard enough to give SS the time to come home. IMO, doubt killed Romero's chances.