Reading TFA, even if I take TFA at its word, TFA's headline claims the group is Koch-backed, but TFA itself only says that the head of the organization previously worked at a Koch-backed organization. The idea that there's any Koch connection, financial or otherwise, to his current organization is complete speculation.
TFA further obscures this by containing a link for the phrase "strong ties to the Koch brothers", presented in a way which looks like it should be about the current organization, but which when you follow it, turns out to be about the previous one.
"Koch" has become such a left-wing bugaboo that any reference to it should make the reader automatically skeptical.
Furthermore, TFA quotes the email, although using an image (why, I don't know--to make it harder to search?) The claim that "he thinks net neutrality is Marxist" is a distortion of that email. It claims that
1) It is like things done by China and Russia (astute readers may remember that Russia gave up being Marxist decades ago; summarizing this as "he thinks it's Marxist" is another left-wing scare tactic meant to bring to mind McCarthyism) and
2) a reference saying that one *specific* group led by one specific Marxist individual supports it.