Is Fool's Overture Overlooked?

There are quite a few pieces from bands that aren't prog as a whole which nevertheless qualify as prog songs. Queen's "Bohemian Rhapsody" and Led Zeppelin's "Stairway to Heaven" are the most famous examples. "Fool's Overture" is another. I call this phenomenon "slipstream prog". But then Supertramp are much closer to being a prog band than either Queen or Led Zeppelin.

I'd say overlooked by me, personally.  I dig the classic Tramp as much as anyone, but I've never been able to warm to most of Quietest......maybe it's that I've owned a first generation CD copy that leaves the whole thing limp.....no sass, weak highs and inaudible lows.....then again, maybe not - nothing ever caught my ear from EITQM, especially the epic Overture.