Russia tampering in the election isn’t a conspiracy theory. It is a well reported fact.
https://en.m.wikipedia.org/wiki/Russian_interference_in_the_...
https://en.m.wikipedia.org/wiki/Russian_interference_in_the_...
Can you say more specifically where your link covers that, I didn't see it.
The lack of proof so far that votes were falsified is a separate issue, but given the existence of the conspiracy, it's unclear why one would rule it out.