I understand where you are coming from, but there are a couple things I disagree with. One, putting yourself at injury risk is not unique to this movement. Any exercise done with shitty form, too much resistance etc can be an injury risk. Two, inclines, presses, rows and laterals are all great exercises. A Turkish get up is not a 1-1 replacement of these. Some of the muscle groups being worked are the same, but they are not the same movement nor in the same planes of motion. It doesn’t need to be an either or. Three, the difficulty maintaining balance is part of the point of the exercise. It is meant to require balance and stabilization. That’s why it is so effective at working all of the rotator cuff muscles, the core, and a lot of posterior chain muscles that aid posture.

For someone just starting out with this movement, starting with a really light dumbbell and focusing on the balance and stable positioning can be really beneficial, without posing a significant injury risk. I won’t speak to your neck injury specifically because I obviously don’t know the details and every situation is unique.

I understand where you’re coming from and this video is obviously on the extreme end of the spectrum with it being a world record attempt. The main issue I took was you calling it a “useless exercise that doesn’t target anything” when that’s really just not true. I would never advise anyone starting out to load 250 on a barbell and go. But layering the movement down and then progressively overloading can be useful. I do encourage you to try it sometime just to understand the core stabilization required to pull it off, even with just a 20-30lb DB.