Most would still agree is was a quick fix to DCA, it was placed badly, and the Facade and Queue don't hold a candle to the original version. Vastly inferior is subjective. Does it have the 5th Dimension Room? No. Does it have a faster paced narrative that focuses more on the ghost story and less on TV show elements? Yep. Does it contain new effects and thrills? Yep.
If the 5th Dimension room was well utilized and the transition to the drop shaft was less awkward at DHS, I might agree that DCA's improvements doesn't outweigh what it lost, but DHS's 5th Dimension Room is not well executed. Aside from moving horizontally and the star-field effect at the end, its really clunky. The transition into the drop shaft is also problematic with it taking a good 5-10 seconds while the car bumps and jostles itself into position, the temperature change lets us know we exited the show area, and the lack of dynamic audio while all this occurs. Having been on the DCA version, I was surprised how much that 5th Dimension Room sequence kills the momentum when revisiting the original Tower. That, the breaking window, and the unload sequence take the attraction down a few notches for me. DCA fixed those issues.