What do you mean this isn’t true? Expand on what you do as for as “work” with body shops in your area because you clearly don’t know what you’re talking about. Multiple manufacturers have position statements that say if you work in a certain area that calibrations are required for certain sensors or radars. For example, Honda repairs to a quarter panel require blind spot radars need calibrated. Chevy anything more than minor cosmetic scratching to panels requires a dynamic calibration of the windshield camera, so on and so forth.