Just a thought, could the emergency meeting have been called because of concerns about the safety (and structural integrity) of the WDW monorail system? We know from the other thread that there was a mini-rebellion by the transportation workers and, legally speaking, that is incredibly significant for liability purposes. First, it may have honestly been the first time the Board became aware that there were reasonable safety concerns that the track itself. And second, if there were a section of that track to fall off and hit a pedestrian or (in a worse case scenario) part of the track were to collapse under the weight of a train, management can no longer claim they were unaware of the severity of the safety issues involved.
It would seem to me that major decisions regarding the WDW monorail system (as a whole) could be made over TDO's head (especially if someone in upper management was saying "Listen, we need to consider shutting the whole system down for weeks in order to adequately make repairs" or "We need a major influx of cash immediately to replace large sections of this track"). The EMH shutdown may have been a compromise result.