Implementing VAR was always going to require patience that we don't have. I think if were prepared to give the officials a consistent set of rules and a few seasons that we would get an acceptable service.
The guidelines they have been given this season, not to get so involved, to have quicker checks, and even to allow marginal offsides sends the message that getting the decision correct is less important than making the decision quickly.
We either need to accept that we can't have it both ways, settle on the rules and guidance and give them time to get proficient and reach a standard, and which point you can begin to tweak things, or decide we're not prepared to do that and give the whole thing up.
I'm not justifying some of the bizarre decisions recently but I do have some sympathy.
When I started my first job, I had many different people coming all the time telling me "Don't do that do this" "your supposed to do it this way" "forget that, try this"... I ended up a nervous wreck, confused with no confidence in myself or my employers, then after a week the boss was telling me I hadn't done enough and put me on notice.
I know the VAR officials aren't young with no experience but this is still new to everyone and they need time to learn. Learning under so much pressure, with different expectations from different people is not easy.