There's another big difference between the DL situation and the DHS situation: the cost of a 1-day ticket. In DL it has been $149 all summer, which Al Lutz indicated was too high and had shown itself to be too high before GE even opened.
In the first 30 days of operation of GE at DHS, the price for a 1 day ticket at DHS will range from $109 to $125 per person, with 16 days at $109, 9 days at $117, and 5 days at $125. That's a significant cost difference compared to DLR, which may be another big difference in the reactions to the two lands. It could be that GE would have done just fine in DL, but TDA got too greedy.