Is an alien megastructure an explanation for KIC 8462852?

"Our best guesses all invoke extreme circumstances, in other words those with a low probability of happening. My favourite explanation

[for Tabby’s Star] is still the massive swarm of fragmented exocomets.” Tabetha Boyajian, Louisiana State University

“I suspect that if

I gave you my best guess for the solution

(well, my best guess today) the star would end up making a fool of me, so I'll just say: stay tuned!” Jason Wright, Penn State University

“[Research] pretty much rules out the alien megastructure theory, as that could not explain the wavelength dependent dimming. We suspect, instead, there is a cloud of dust orbiting the star with a roughly 700-day orbital period.” Huan Meng, University of Arizona