I couldn't really understand the blog post: his theory is that there are terrestrial but nonhuman entities that like to impress the religious? But the vehicle interference cases you reference are generally not religious in nature, and are extremely varying in the actual form of the craft seen (some are red and blue, some are series of lights). What possible motivations for the entities could there be? Most agents with such advanced technology will aim to efficiently optimize for their preferences. If this is what optimizing for their preferences looks like, they have some very improbably odd preferences.