The issue isn’t the technology it’s the idiots trying to use it. Binning it simply puts the decisions back into the hands of the idiots too incompetent to use VAR. If they can’t use VAR then they arent competent to referee.
From my experience automation must be taught and can only be done if you have a fixed point of reference. The fixed point can either be a physical point (hard stop) or a taught point using some form of encoder or resolver. I would expect tha VAR technology uses the various points around the edge...