Maybe, but it was overly optimistic for Walt to think that he could keep updating Tomorrowland every few years at great expense forever and ever without any strategy for how that was going to be accomplished. That's fairly big detail to gloss over and it's at the root of why every TL has come up short.
I wasn't there, but I can't imagine that The Bathroom of Tomorrow or some of the other worlds fair type science/tech related exhibits and attractions that have come and gone before my time were popular with people. Even the more recent flashy Innoventions failed to draw much of a regular crowd.
Disney's most successful strategy for keeping TL relevant has been to gradually rely on futuristic thematic set dressing with each update or new attraction. 60 years after opening TL is zero substance and 100% Show. Besides the edible landscaping there is literally no content in the land that points to an everyday future that guests might live in someday.
Don't forget that within a relatively short time the park had generated enough revenue to launch the first TL "expansion" in 1959.
I think so too, however in the wake of EPCOT Center (itself a watered down theme park version of what was supposed to be a real city) and multiple iterations of Tomorrowland around the globe, I'm of the opinion that the WDCo is unwilling and unable to execute what Walt set out to accomplish back in 1955.