Yeah the Gizmo was perfect. It made perfect sense for sun, where I never use random position, but instead only iterate on single axis at time. To me I don't think of Sun as some positioned spotlight.
Also yes, as others mentioned, it made matching to HDRi an absolute breeze.
There needs to be a way how to at least get it back, can't they coexist somehow ? Who even uses the shitty viewport illumination ?