> The implied reason is that it is bad for "player A" to not be able to fool their subjects, while it is good for "player B" that "player A" can't.
That was essentially the response after the most impactful example of Russian interference: when Russian hackers leaked DNC emails proving collusion against Sanders by the DNC and the Clinton campaign. The Democrats deflected by blaming Russia for exposing the truth. Many people argued that it was unfair that only DNC emails were leaked.
We could fairly reduce the DNC's defense to: it is bad for "player A" (the DNC) to not be able to fool their subjects, while it is good for "player B" (Trump and Russia) that "player A" can't.
The DNC even doubled down by suing Trump and others, as well as Russia, over the leaks. The lawsuit was dismissed with prejudice because
> The judge said the other defendants [Trump, Wikileaks, and others] "did not participate in any wrongdoing in obtaining the materials in the first place" and were therefore within the law in publishing the information. He also said that the DNC's argument was "entirely divorced from the facts"
https://en.wikipedia.org/wiki/2016_Democratic_National_Commi...