What was described was offloading portions of software development to a LLM to reach B faster. This works very well and is an improvement over the traditional method of implementing everything yourself.

Shopify is tangential to this. I will add that having had experience with similar platforms in the past (for building websites, not e-commerce), I can say that you must be either naive or a masochist to use them. They tend to be mediocre compared to what you can get from self hosted solutions and the vendor lock-in always will be used to bite those foolish enough to use them in the end.