To dismiss all evidence of UAP's out of hand as "illogical" is just as unscientific as to accept them as being proof of ET visitation. It may be that all these claimed observations are the product of some sort of collective psychosis, as this article appears to assume, but that's just one hypothesis among many others. Empirical questions require empirical investigation, not ignoring the question.
I did used to entertain the idea of aliens visiting this solar system. And then I better understood the stupendous energy requirements for a two-way trip to even the very closest neighboring solar system. And it is just not practical, even for a civilization at the end of the technology development tree. We might see one-way probes, but they are as likely to be a part of hegemonizing swarm, looking to convert all usa…
Perhaps we have a highly advanced neighbor that values their privacy and has the technology to remain concealed from our "primitive" observation capabilities? Again, not likely but it's fun to think about.