I think VAR will just improve the number of correct decisions, as it’s designed to.
I think the stuff about it benefitting the big clubs is a load of old conspiratorial tosh, tbh.
I think there is an assumption by many that it will reduce favouritism rather than increase it.
As you say, all that will happen is that the “correct” decisions will increase, not the ratios of who does or doesn’t benefit.
Because decisions to award fouls are subjective (is there intent, is there enough contact, have they been impeded etc.) that won’t change.
A possible area for change is offsides as they are much closer to a definitive position.
It would be interesting to see some stats on “wrong” offside goals over the last 5 seasons say and what patterns emerge.
I think for us this season we’d have seen second goal at Arsenal disallowed, so probably still lost, Son’s second the other day, so probably still lost.
On other side, Richarlison’s vs Watford so maybe we’d be a point down there.
Limited sample there of course but it’s possibly backing up the point made before that the better teams will have more “wrong decisions” ruled out that don’t effect the scoreline simply because they’re attacking more (eg they normally get more pens).
Not cheating or conspiracy, just the way it is.
But not a panacea for bias that many hope/ expect it will be.