I'm a DLR veteran, visiting dozens of times over the past 15 years. However, I just visited WDW for the first time this month. Stayed for 7 days, onsite at a 2 BR Villa and had multiple visits to each park.
While I enjoyed the experience, I can't wait to get back to my "home park" on the West Coast (after many more construction walls disappear).
MK felt wrong. Like a blown up version of DL with poor imitations of the most of the attractions (i.e., Peter Pan, Buzz, IASW, Space). After the initial "WOW" factor, even the castle felt wrong to me. Fantasyland at WDW is joke, while it's my favorite land in DL.
While the theming at HS was overall far superior to DCA, the park had tons of unused space and meaningless dead ends.
Epcot and Animal Kingdom were my favorite parks at WDW. Both incredibly unique and full of fun, new experiences.
I've read about the "immersion factor" for years on this board and I can honsestly say that I didn't feel it. Each time I had to wait on a bus/boat/monorail or other form of transportation instead of just waking where I wanted to go, I was instantly yanked out of the magic. I don't lose that feeling walking across the esplanade between parks at DLR (or even walking across Harbor to get to my bed in less than half the time of most bus rides at WDW).
I appreciate the article in the OP and agree wholeheartedly!