It really is amazing that Epcot and DHS have failed to recover from the opening of DAK. The 1997 numbers for both parks were higher than the 2014 numbers.
EPCOT had a brief resurgence when George Kalogridis was able to wrest the Milennium celebration from being MK-focused to EPCOT-focused and the park did quite well in 1999-2000, which was enough to get him the biggest job (then) of his career.