i agree, there are many things that can explain this,
it bothers me when I see legit science efforts junked up with stuff like this
True, but asserting that this is possibly artificial is not junk science.
A primary method of establishing that something is artificial is to look at it's level of intrinsic chaos, it's entropy.
Things in the universe tend toward low entropy. Forces cause that - gravitational, chemical, etc.
From a long way away, looking at Earth, one can deduce that it likely contains life. From the percentages of gases in the atmosphere. Oxygen is reactive, so there is no natural way that an atmosphere would continue over long periods of time to contain oxygen - unless it was being renewed. EG, plants.
Similarly, implausible blocking of 20% of a star's light periodically indicates something moving around that star, which has NOT moved to low entropy. EG,