It doesn’t work that way, the Make Rot From X is a way to make a rotator in world-space based on a vector pointing in a direction. It’s very useful. If you want the long version, it converts a rotation matrix generated from a vector into a rotator.
There’s very few scenarios where you’d want to directly convert a Vector’s elements to a rotator. Strictly speaking that doesn’t really translate to anything useable that I can think of…