Literally a Jewish trick. The author of the paper is Jewish. Him and his coauthors are ayyylien grifters. It's a comet or nothing burger as it always is. This isn't the first time they made this claim. The last interstellar object was hyped by them and they sold ayylien books based on it.
Keep in mind they non-stop tell you about aliens having wormhole technology and moving in ways not known to physics... yet when it comes to them coming from the outer solar system... all of a sudden they follow our slow physics. Fuck Jews.