Perhaps VAR should only get involved if the on-field ref' requests it? For example if he's not certain if a foul is inside/outside the box or if a linesman tells him he can't be certain about offside. All subjective incidents should be left entirely to the ref. He decided when VAR gets involved.
Yeah, this'll work a treat!
On Saturday the ref didn't even see it as a foul, yet we can all see it was either a penalty or a free-kick on the edge of the box. He also thought a straight legged thrust of a boot delivered with force to Laporte's thigh was just a yellow.
Penalty for foul on Foden at Southampton last year? Ref saw nowt wrong with that.
Milner on Foden at Anfield? Ref saw nowt wrong with that.
Milner on Bernardo at Anfield? Yeh, nowt wrong with that in the ref's eyes.
etc...etc...etc...(the list as almost endless)
Yet un*t*d get pens AFTER the fucking final whistle has gone, goals allowed when the ball has gone out of play in the build up (west ham last season), penalties for Ratboy standing on people and then falling over theatrically, ...etc...etc...etc (once again the list is almost endless)
And don't get me started on liverpooh and their favourable decisions.
All WITH VAR.
All your suggestion would achieve is what we have now, only without the slight safety net of blatantly "clear and obvious" errors; red shirts get positive decisions, sky blue get negative decisions.