Can you imagine the drama if they would have named their first post-MP album "Dream Theater"? For what it's worth, I agree with the OP.
While I like DT12, I think ADTOE is one of the quintessential DT albums encompassing everything they're about. Self titling that would have been more appropriate.
It's also funny that when they first announced the ADTOE name, just about everyone, myself included, was thinking, "What the hell are they doing? That name is horrible!"
Years later it is one of my favorite DT albums and I don't give the title any thought. I guess it's grown on me or at least the music speaks much louder than the underwhelming and odd title.