While both of us not being experts on them, I would have expected they could be corrupted. The point here is, that report DOES NOT PROVE they were. It explained they are designed to be rigged. I don't disagree with that but they weren't rigged.
Here's a bit about your source and noticed it's linked to Bannon and the right wing conspiracy nuts. Once again you quoted an unreliable source .
Big League Politics is a far-right[1] American media website that promotes conspiracy theories.[6] The website was founded by former Breitbart News employees.[7][8] The site was announced in 2017 by one of its founders as an investigative outfit.[9] In early 2018, Big League Politics was acquired by Mustard Seed Media[10] which is owned by Reilly O'Neal and Noel Fritsch.[11] The Wall Street Journal describes the website as "a scrappy, pro-Trump outfit backed by Republican operatives".[12]