I think there are two parts to it

1. Execution of engineering task - Companies happen to focus on this mostly and this is the metric to measure easily. Using LLM tools gives a impression of improvement on this area which is what everyone is chasing

2. Growth of the Engineer - This is the one which was always a side product of company culture, individuals interest, work being done, time being spent to understand, learn from failures. A job being executed perfectly for the first time itself does not gives the opportunity for learning, no memories/experiences are built up mind of the person executing the job after a while.

The second part is the one which is under appreciated in current scheme of things since it was a by product. There is a concept of muscle memory which pretty much applies to everything.