I think this is because if the fact that Bitcoin is still going strong and will be stronger, I think they just wanted to get bitcoins at a much cheaper price, and I believe they are also trying to influence the price of Bitcoin if they can, since that's what they do, they manipulate the prices of the stocks, which is not new to them. I think what they should just do now is try to live with Bitcoin and other cryptocurrencies since it will open new opportunities to them as well. Goodman Sachs move, making an exchange probably also she'd some light to them, since it is also an established financial institution, they could not afford to ruin their image further.
Actually if they want to develop bitcoin then its price will never be lower than that. Because by value, we can see that it is growing, they are less able to manipulate bitcoin, it is common, no one can control it except its creator and the events that happen to it. It is a wrong decision of them, it will make them die with the illusion that they created themselves