Apparently the alien megastructures are wishful thinking, but the story itself is kind of interesting, as conveyed by CNET:
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This is a tricky story to write. The mysterious scientific observations it deals with could wind up being nothing, or they could amount to some new, interesting astrophysical phenomenon that gets its own little section in a planetary science textbook someday. But there’s also the tiniest chance that some perplexing light curves from a distant star over 1,400 light-years from Earth could be the beginning of the biggest discovery since not just the birth of modern science, but the birth of well, the human race.
Yes, you guessed it, I’m talking about the possibility that we may have the first scientific evidence of intelligent life beyond our own solar system.