I'm two sided on this.
During attract mode, this could be cool, really draw a player over. It looks neat, adds a modern twist to a classic. But at home, unless I'm having a party my machines are off.
During gameplay I look at the playfield. New casual players look at the ball and miss what's going on with the DMD, let alone a huge tv right there. It could really add a new depth to the game through an interactive video game mode, but I'm playing pinball not an arcade. I really think to use it in a game (during gameplay) would detract from the pinball game and ruin the flow.
If you are forced to stop and watch a video every couple seconds then it would suck. But if its done tastefully and not used as a gimmick, then it could be an improvement