Why did they get it to start?
To get all the calls right? Did they achieve that and is it worth it?
My counter proposal would be to add a second on field official.
I think that would be worse than no VAR or just 1 ref.
I know they have 3 kind of co-equal refs in basketball and in football they have distinct responsibilities for parts of the field, but that would require a complete re-thinking of how authority is shared. There are just way too many scenarios where they both would need to make a call, so what are they supposed to do, talk about it on the pitch while everyone at home watches the replay and they are surrounded by players? Insane.
In my mind, the biggest weakness in VAR is how to navigate the egos of the on field ref and most of the mistakes seem to be the VAR ref not wanting to hurt the feelings of the on field ref and have them take a look so there is some continuity to the game being called.