I've no problem with VAR correcting clear offside decisions. It's the one area of the game where I think it COULD be put to good use. But it can't possibly be relied on at the current frame rates for tight calls.
The problem I have is that the authorities are pretending the current technology is conclusive. Until it is, there needs to be a margin for error built into it (which, to be fair, you've acknowledged in your previous post). A bit like what they do in cricket: if there's any potential for doubt they allow the goal to stand.