I can see both sides of this situation, but this is what I believe should have been done or what should be done in future situations like this.
The Ref and Head Ref should not have made a final decision until both coaches were aware of the situation. Each coach should get an opportunity to state their argument. Then if there is a video available, then let the refs review the video. Then before the Ref announces his final decision, the injured wrestler (Hardcastle in this situation), should determine if they can finish the match or not. Otherwise if the wrestler or coaching staff knows that if they can't finish then they win, then that doesn't give them much desire to push through to finish the match. If they are willing to to take that risk and say they are unable to finish the match, then I'm sure the refs would allow that to influence their final decision.
At minimum, it would have been nice to make the SW coaching staff aware of what was going on. Give them an opportunity to state their case for something as serious as ticket round. There is no reason to surprise the opposing side when they raise the other kids hand. I don't know for sure, but I would guess SW coaches weren't aware of what was going on until they raise the other kids hand. That aspect of the situation seems unacceptable.
Just a thought...