I have got to believe that everyone who played Georgia has either sent tape to conference directors, assigners, SUIP etc. of Hamiltons delivery. The crews probably reviewed tape of this before the WCWS.
From watching the WCWS the coaches have questioned the umpires on this and she has been called for several IP's. The umpires answer is that they are watching but also need to watch the pitch and if it is clear, then they will make the call. They made the call from HP and BU's when it was clear and on several pitches, even when they were rotated, they did not make a call when it looked like she was out of the lane. But it is tough to see every time.
They interviewed Hamilton and she said she has worked hard to stay legal
Again to fix the edge the pitchers get by just having the tip of the toe touching the pitchers lane lines to be legal is to put another change in the rule to make it an easier call for the umpires and to reign in the pitchers.
This will be up to the coaches to make that change.
Any suggestions on a rule change?