OHP is a great option for your shoulders. It can be overdone like every lift but
the additional stability and care activation can allow you to safely push more weight and increase your functional strength. Dumbbell Overhead press is also a great lift for your shoulders as it required more stabilization. Most lifts have their benefits and drawbacks. Assuming that anyone doing OHP should have to start from the floor to keep the precious squat rack open is a ridiculous opinion.