For sure, how it feels to you is entirely subjective. But as has been pointed out in this thread, many people feel that way about most of DT's epics.
The fact is that SDOIT is a song, and SFAM is an album. Whether you think they work in those terms or not is a different matter, and if you'd prefer not to think of them that way, that's cool. But they are that way, in how they were intended and how they were written.