You miss the true point. It's not a smart move- it's a knee-jerk reaction to the crashing economy which directly followed 9/11. Future World never closed any earlier than World Showcase prior to that.
The true point, I say, is that be happy you managed to save some cash over the years following by closing things / cutting staffing early. The bottom line is, however, that attendance is right back up to what it was before 9/11, and in fact Happiest Celebration on Earth even helped to draw beyond that. There's no longer an excuse to close things early, regardless of how "new" or "technologically edgy" the rides may be. It's a simply fact of there are paying guests in the park - many more than a few years ago, and you need to keep more rides open to occupy them.