Great effort by Reddick. Fortunately foul... although A's making a desperate challenge. ETA- replay shows much closer than I first thought.
Two wifi cameras on each foul pole. One facing down the line. One facing down the wall. Any semi-competent Youtuber could probably set it up easily and cheaply. 98% of questionable boundary calls solved. Put a fifth camera somewhere out facing along the center field wall, and you solve 99.99% of boundary calls. MLB too stupid to do this.