Do you think this is one of the few cases when the house did not win or perhaps it had something to do with factors external to the casino snd it's management?
Have you ever heard about casinos this big failing to the point they need to be completely demolished before? Because I have not.
According to the article the decline of the stated casino is due to the establishment of its sister company, the Trump Taj Mahal. It is more likely cannibalism since its sister company possibly won the interest of the Trump Plaza players leading to the decline of the Trump Plaza. This is more on the management than the player winning over the house.
The not wisely planned purchase of properties around the casino also help in the bankruptcy of Trump Plaza, I think the management bites more than they can chew since they keep on spending money to acquire new properties while their currently acquired properties do not give them a good profit.