There definitely is hope for AI aiding with the less subjective elements of refereeing, such as offside, ball out of bounds, keeper moving off of line before a penalty is taken, etc.
It has already had a big impact for ball crossing the goal line judgments if you put computer vision in the broader AI category (e.g. Hawkeye in the PL)
I read the headlines and was surprised to see the replay of the red card afterwards. There's no intention to harm but he went studs first on the calf and then all the way down to the foot. Red card is harsh but imho not a blatant error. You can't go studs first.
There's a pattern of referees giving unreasonable red cards to Arsenal, and those same referees getting lavish trips to the Dubai, which is where the owners of our title race rivals for 2 previous seasons are located.
It's a similar conflict of interest, if not outright corruption as Justice Clarence Thomas getting free all expenses paid fishing trips and other goodies from a billionaire who wants to influence Supreme Court decisions.
It has already had a big impact for ball crossing the goal line judgments if you put computer vision in the broader AI category (e.g. Hawkeye in the PL)