The layout also had the potential for greatness: though its purer hub-and-spokes design had flaws, it became a really great layout once a few more paths were added to connect the spokes like a spiderweb.
Furthermore, the park had some very ugly areas at first because Disney intentionally created areas where trees and foliage would eventually mature. The results weren't pretty in the early years - the entire west side of the park looked pretty barren and "young", based on photos from the 50s and early 60s. But for the majority of the resort's lifetime, those have been some of its most beautiful areas. It would have been unfortunate if Disney had instead just erected buildings throughout that area. Balance is necessary.
Combine those three factors with the jaw-dropping rate of changes, demolitions, additions, and tweaks in that first decade-and-a-half, and it's no surprise the park became such a favorite, despite its humble yet groundbreaking beginnings!