This could also be called the Lexi Thompson decision after her fiasco at the ANA Inspiration. It's also a long time coming. Video review scenarios have created many problems for major championship golf in recent years. The ruling bodies have now spoken. The following is from a USGA press release.
FAR HILLS, N.J., USA AND ST. ANDREWS, SCOTLAND (April 25, 2017) - The USGA and The R&A have issued a new Decision on the Rules of Golf to limit the use of video evidence in the game, effective immediately.
The two organizations have also established a working group of LPGA, PGA Tour, PGA European Tour, Ladies European Tour and PGA of America representatives to immediately begin a comprehensive review of broader video issues, including viewer call-ins, which arise in televised competitions.