Should they remove positionals at this point?

[mosaicex]

....

So what you're saying is doing positional is easy except when it isn't easy, in which case it becomes difficult. Nice revelation going on there.

Also why are you people acting like missing a few positionals will dumpster your DPS? This hasn't been the case since 2.4, since then they have been continuously easing the penalty of missing positionals from "rotation crasher" to just "cool if you do it, fine if you don't (as long as you don't intentionally miss all of it)"

This isn't 2.0-2.3 DRG era anymore, where missing a positional outright denied you the damage buff or won't let you progress further into your combo, or in 3.1 where missing positional with Fang & Claw and Wheeling Thrust dumpster'd your whole potency per gcd to below the point where not doing them gave higher gain.

Of course except for NIN, but such is the cost of powerful debuff like Trick Attack, and even then unless the boss is spinning like spinning top there's no excuse not to wait a few seconds to land it safely.
This is also assuming you're playing by ears and not already have all CDs planned out like you should be.

Sure some fight(s) are a bit tougher on landing positionals eg. Suzaku EX (especially if tank isn't so good at minimizing the movement) but none of the Savage fights through 3 whole SB-tier have this particular problem.

"BUT SHINRYU EX"
This is not really relevant. Shinryu EX is not Suzaku EX, much like how Neo Exdeath isn't God Kefka or Final Omega. If fights weren't designed with postionals in mind then of course they will have to compensate in some other ways.
It's all about the fights presentation first, mechanics second, unless you're somehow suggesting it's the other way around ("Gee, I don't wat Shinryu EX to have positional so I guess I will present him like this")

Sometimes you just have to accept that you will miss a few of them and move on.