Said it before, but you can't compare VAR in football with reviews in cricket. Cricket decisions are almost always black and white, how many decisions in football fall into that category? Physical offside positions, and ball over line but we already have GLT for that. And not just cricket, but tennis is black and white, and almost all decisions in rugby are.
As we see on here, even with the benefit of multiple replays we don't all agree, and sometimes it is split right down the middle. And that's just because in football we have to be more subjective, especially these days when physical contact doesn't necessarily make a foul. We can all see whether there has been physical contact on a foul or not, but we might not all agree on whether that contact was enough to bring the opponent down.
We are already seeing signs of improvement under Webb, so far we haven't seen inconsistent VAR interventions, and I'm confident he will sort out the comms. Perhaps not real time, but certainly explaining after games. Countries that have nailed VAR far better than England aren't doing live audio, and won't until they are 100% certain that any problems have been ironed out, otherwise it could be hugely embarrassing.