The article claims more than it shows and attributes the contestants successes to the wrong factor.
According to the article, host Drew Carey was sure Terry Kneiss was cheating, "When revealing Terry's winning bid, Carey didn’t really celebrate; he was sure that the man had cheated and presumes the source of the host's reaction. Footage of the moment shows Carey's uncharacteristically subdued reaction." and linked to a recording of the show. Later the article claims host Drew Carey had "presumably, unending ire".
Neither claim is backed by evidence. Not only is there no information in the article indicating whether Carey was "uncharacteristically subdued" or carrying any ire, but also there's no evidence Kneiss cheated. What Kneiss did was properly called preparation, homework, or research. These are all complimentary terms which properly frame what Kneiss and other winning contestants do. It's poor editing on the article's part to choose the language they did and explain much later in the piece that there was no cheating going on. The article claims that some contestants "exploit the vulnerabilities" of game shows but this language too places the onus on the wrong party, the contestant.
I'm reminded of a similarly poor accusation made against people who do well at gambling casinos in card games; they're sometimes said to be "card counting" because they mentally track which cards they've seen played in the game and use that information to compute which hands are likely to come up. This phrase is said in the context of placing the blame on the player, as if they've done something wrong. But what they're being accused of is indistinguishable from what reasonable people call paying attention. Fortune may favor the bold, but luck certainly favors preparation and a keen eye (be it studying recordings of broadcast episodes, watching a show for years on end, tracking what's been played, or taking notes based on broadcast information).
If you want to play games with people who pay attention, don't be lazy in setting up the game. Don't do what CBS did on "Press Your Luck" (and certainly don't threaten not to promptly pay out when keen observers win as the article claims CBS initially did). https://en.wikipedia.org/wiki/Press_your_luck#Michael_Larson has more information on how Larson paid attention and used the information he gleaned to win record winnings.