A lack of effort put into presentation is a signal for low quality. In the past, this might've manifested in using default Wordpress templates, and now it manifests as stock LLM templates instead. Can you make high quality content and present it on a stock template? Sure, you can, but without any prior reason to believe that you put more effort into the content than the template, I'm liable to believe the content is LLM-generated slop as well and therefore untrustworthy and not worth my time.
In this case, it appears more effort was put into content than presentation, which is a possibility and the creator is in the comments saying as such, but humans operate on heuristics by default. The majority of sites that look like this have been a complete waste of my time and I usually just click away at this point.