Not in the slightest. It adds flavor to the page and makes it more approachable than just a wall of text. This is one of the benefits of generated images - it is a nice middle ground between creating your own and choosing from stock images.
Yeah. These are basically glorified stock pictures that superficially seem to fit the content. But images shouldn't just be about aesthetics: they should also complement the content. AI-generated stock pictures don't have any sort of hidden meaning, you're wasting your time if you look at them.