Writing and publishing an obit is at the direction of the deceased family. They must provide the content, and sign a release before it can be published.
It doesn't require much thought about why this was not done. If one had been published, can you just imagine the avalanche of calls to the IPX office and the staff? The questions they would want answered? The problem was, and still is, they do not have any answers. No one knows who will "be in charge" of the business operations. In these circumstances, and this has been told to me by lawyers handling the civil cases which are all on hold until this happens, a personal representative must be appointed for each of the businesses / LLCs. I should be able to know when this happens, and who it is. IPX has not issued any notification either for these same reasons.
Daniel's parents handled all the arrangements. They may have even gotten legal advice about what this meant for the businesses. If they did, any smart attorney would tell them and the employees to say NOTHING about how the businesses go forward. The smartest and easiest way to avoid any missteps was to sit on the news of Daniel's death until everything is sorted out and a little more settled.
It's that simple. They kept the lid on this for understandable reasons.