This take gets so close to a nuanced view then doesnt quite make it there.
TL;DR Generative AI is just a tool Authorship is still fundamental to Artistry. Artists will use AI to author great works, but most users will not. There is no shortcut to previsualization and taste.
The core point is that AI Image Generation is a tool, a tool that is getting more tool-like every day. To use his analogy about Magic Lasso, it was a tool that made a step in the process of image editing faster and easier when it worked, but many people using Photoshop might never even touch it because they don't need or haven't learned its use case.
Most people today using AI image generation do not know what ControlNet is, or how to successfully create a repeatable reference for a character to be generated.
While the generalist application of the core technology "text to image" is easy to fool around with for the layperson to generate images they haven't pre-visualized it is an entirely different process to pre-visualize and then pursue the specific execution of an image. This is artistry, not putting a brush to paper but creating an idea and then executing it to the predetermined specification.
As a necessary aside, yes there is artwork which is "spontaneous" "generative" or "Process-Driven" but in those cases the artwork is framed around the process and/or the concept. The story of its creation is fundamental to its value. "So I wrote a prompt and generated the image" isn't going to command much clout in the Fine Art world.
To go back to the definition of an artist as one who conceives of and then executes artwork, and how this relates to the use of specialized AI tools, we need to discuss curation and producing.
A curator is one who does not make art, but instead relates works of art to one another and exhibits them in context to perceivers of that art, they do not fundamentally create the value of the art, but can add to the value of the work through discussion, illumination, and exhibition. Much if the relation of individuals to artwork on the internet is mediated through the exchange of curation, that is to say we curate what we like when we repost the works of others and comment on them, and consume art online most often in this context of being curated by our extended social network.
Contrast this with the role of the Producer in cinema, the producer's role is to curate talent to achieve a cohesive and successful work of art. They are almost never the Artist themselves, except in specific cases of Auteurs which I will touch on later, rather it is their job to match up Artists with each other to assemble a tram capable of executing an effective synthesis in the final work. The director works the Actors into. the shape of the performance they have conceived, the Production Designer creates the physical or digital space in which the performances take place, etc.
Is your general member of the public typing prompts into an image generator more of an Artist, a Curator, or a Producer? To me there is no one answer, instead the person is taking more of the approach of one of these by way of their process.
Now we come to Auteurship, in cinema when there is one artist who has fully conceived of the final work of a film in every detail, and takes on the role of final decision maker in every aspect of the artwork, taking authorship from the others working on the film and placing it solely on. themselves, we call them an Auteur. The Auture is usually the Director, but very occasionally might be the Producer, or even the Writer, but in all cases they are the ones who have created ahead of time in their mind's eye the specific aesthetic, pacing, story, performance, and even score of the film and are striving to bring the reality of what is being created as close as possible to that vision, everyone else on the production is then placed in the role of technician, or perhaps craftsperson. The Auteur is the Artist, and the film is their work.
The last thing to say about the Auteur is this: there are many good Director, Producers, and Writers, but very few good Auteurs.
This is the case for AI, as the tools are developed to create specific, predictable outcomes using generative tools, the burden of technical execution deminishes, but the burden of Authorship, of Artistry, can not be deminished.
Generative AI is just a tool, but it is vision and storytelling that will enable its output to be Art and recognized as such by Curators and the public, and as with every other art, the process will be fundamental to its value, and that process will not be a single offhand written prompt into one generalized algorithm.