Agree with the edge wrestling.You could have an action packed period with shots and scrambles and no score, so not sure that is the answer. What I saw way too much was whistle, wrestler backs up to edge then holds edge. They need to figure out how to stop the back up to the edge strategy imo. I think something like a 3 count if your heels are to the edge or something and stalling. Idk but that style of wrestling sucks to watch.
The action packed no scoring 3 minute periods are very rare. Usually 1 wrestler or the other is the aggressor & hopefully got a stall warning on his opponent