I don't think positionals should be eliminated entirely, however, I do think more bosses that require a specific dance is a lot of "stand here" need to have the position-less target ring. Midgardsormr is a good example of this in this raid tier. Too much of his fight requires you to stand in specific points for elongated periods that really punishes melee jobs, and while all the fights of this tier do it to some degree, none are as much of an offender as that fight.

There is a degree of optimization that you learn as you play a fight more and more, and you'll still miss the occasional position due to how you need to do the dance of the fight (True North helps with this if you know you're going to miss for a while) but when you have an entire fight where the mechanics of beating it require the party distribute itself in certain patterns for the entirety of the encounter, then that's a boss that should just not have a positional ring so as not to make non-melee jobs more powerful simply because they don't have to worry about where they're standing in relation to the boss's hit box.