Again, I guess it depends on your point of view. Here's the dedication plaque:
To all who come to this place of Joy, Hope, and Friendship WELCOME.
Epcot is inspired by Walt Disney's creative vision. Here Human achievements are celebrated through imagination, wonders of enterprise and concepts of the future that promises new and exciting benefits for all.
May EPCOT center entertain, inform, and inspire, and above all may it instill a new sense of belief and pride in man's ability to shape a world that offers hope to people everywhere.
I think Wonders of Life pretty well covers all of the criteria for the Park - it had futuristic - if fanciful - ideas (Body Wars, Cranium Command), it entertained (me, anyway), informed, and inspired (again, at least me). I don't get this from most of the attractions that followed the opening of this pavilion. Perhaps the only exception is Mission: Space, though it still doesn't take the place of Horizons.
ed. On further consideration, I wouldn't place the downfall of EPCOT Center right after Wonders of Life opened. I think the replacements of Symbiosis and the original Universe of Energy with Circle of Life and Ellen's Energy Adventure were well deserved. The originals were like sitting through dull science lectures in high school, without the benefit of a diploma afterward. The two current attractions still have the education, but they also have something the originals lacked - entertainment. I'd say the downfall all began with the death of World of Motion and Horizons, though the additions of Tapestry of Nations, Millenium Village, and Illuminations: Reflections of Earth helped negate some of the awfulness of the Wand, the Tombstones, Test Track, and Journey Into Your Imagination.