I refined my question and replaced "put together" with "assemble" after your comment involving CNC and parts production. Felt as if I wasn't being clear enough in my words.

Back to the watch analogy.

Assembling a watch is a time consuming process, requiring patience and precision. It takes time to learn the process and failure, although not rewarding, is a crucial part of it.

Using an LLM to do whatever it gets used for cuts off the building of the delayed reward process and lowers the threshold for people to endure frustration in order to achieve a result.

A straight forward example: internet searching. A standard search result returns a series of possible pages where the answer for a given question may be. It may be the first link that supplies the information required, it may be the second, the tenth or a sum of the links, but it's up to the person doing the search to decide. And LLM returns a prechewed result that gives instant gratification but not long lasting learning.