I think the myth is due to the cost of Rear Sway bar installation.
You take alot off and to save repeat cost you may as well do other stuff while you do rear sway.
Front sway bar can be left alone.
128i Sport 6MT converted to Euro 130i spec, tuned by EVOLVE
In-progress: Evolve tune configuration!!; custom lip, some susp.
"The 1-series is the last car that BMW engineered before the Germans, as a car-making culture, fell out of love with driving." - R&T 2013 135is Review