Automation could simplify that a lot and remove a lot of the uncertainty. Making communications easier might save some lives. A lot of accidents are caused by human pilots and typically that involves them making mistakes in stressful situations. Dealing with ATC is very stressful for pilots. Task saturation is something they all fight throughout their career. IFR pilots have to train and fly a lot to stay current; the ability to keep up with the radio communication and fly procedures safely is quickly lost when they don't. That's how hard it is. A pilot that is not current is not a safe pilot. That's why the rules are so strict for this.
If you look at this space from a distance, it's kind of obvious that more automation is going to be inevitable. Airspaces are busy now and they are going to get a lot more busy in the next decades. At least part of the traffic is going to be autonomous. Those planes will likely be communicating with ATC via networked protocols that have yet to be proposed and standardized. There is no reason why those protocols could not work with other planes. And it would free up ATC staff and pilots to do more urgent things. The way ATC is currently done is not scalable or future proof.