Really? I saw plenty of this in 4E. You can be just as niggly and nitpicky about the placement of a square fireball as a circular one.Yes, for the 2 seconds that a fireball is on the table, it's square, but, that resolves so many of the niggling "Oh, if I shift this over 5 feet, it might get that guy, but that other guy is going next in initiative, so I should shift it over there" Mickey Mouse crap that I see at the table.
Theater of the mind is the only solution I've ever found for this particular issue.