Yes, VAR as failed so far and there are no signs of it succeeding any time soon.
Accuracy isn't the only consideration. When it was introduced, I think most people thought along the lines of - yes, we'll trade off some disruption to the game, and loss of flow, for a much greater level of accuracy. I think that was the deal, then. But we have a disappointing improvement in accuracy and IMO a catastrophic disruption to the entire experience of enjoying a football match. They haven't been able to make it work so I'd prefer it to go (or be mothballed for a half-decade and only tried again if it's fixed).