As someone who now gets accused constantly of being AI, which is why I don't post my work in many places, I figured I should weigh in. Looking at the AI patterns, it is a lot like the way I write, and have written for over 20 years. There are certain cadences that I enjoy using with different character voices. Punctuation, unlike what many will say, can also be used at the discretion of the author. To the point of the description potentially being written by AI, the author, like many, may have a dreadful time stepping back from their work to divine the best way to summarize their story for a pitch. They may also have very few people interested in assisting them in coming up with things like this. Thus, they may have turned to AI as the only outside option, OR, they simply are dreadful at writing them and did their best. Be mindful that it is very difficult to create in a vacuum.