This theory has actually been around for a long time. I first heard of this back in 1969/1970. Unfortunately for me at the time I shot my mouth off about it in school and instantly became a laughing stock. At the time I found the theory credible and it seems that it could indeed be very real. So, piss-off to my Classmates of ‘74 on this one.
The theory is this dark (actually twin) star’s orbit is so long and elliptical that it’s impact is only noticed when it comes around and gravitationally pulls objects out of the Oort cloud.
Which is how we get craters :)