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That leads me to believe there were very deep problems within the administration of that site,probably a big conflict of interest among those who were in charge of running it. Who knows, there is a chance someone in the staff wanted to have a good casino while other just wanted to exit scam when the time was appropriate to him and there were struggling for their own interests...
If I may offer perspective from my own [personal] professional career, such cases where shareholders or the higher-ups are disagreeing about the direction of their company are not uncommon. And usually, it's solved through finding a middle way, taking majority votes if necessary, and on severe case, offering a buy out for the partners. One or two even publicly announced [it's a small business close to where I live] that they have internal issues and will come back with solution in an undetermined time, but assure that they will give their best, clear all of their duties and responsibilities, and then pull the brake while they internally solving their issue. None of the companies with these issues in the past from my experience took the houdini act.
Surely because those companies and those previous experiences you are talking about did not involve anyone within the administration having legitimate bad intentions for the future of the casino or the future of the gamblers who had fun there.
What I am trying to say is that this may not be the common case where those in the casino staff have disagreements on the direction to be taken, but rather one of the owners being a potential scammer who had had planned to exit scam for a long time but did not do it because saw some earning coming for the normal operation of the casino, however, it may just take a small occasion of low earnings or some week where the casino was under-performing for that person to take all the money and run away.
That is just a theory, but there are indeed many people on this planet who do not care for having a reliable business in the long term, as much as they care to burn it all for a sack of dirty money.