The factory rear track bar has fixed joints at both ends, their angles cannot be adjusted. When you install a SYE and CV driveshaft, you need to roll the axle to raise the pinion angle due to the CV driveshaft's requirement. That changes the angle of the factory driver's side track bar bracket so it is no longer the same angle as the driver's side of the OE track bar. You need an angled track bar relocation bracket to correct the bracket's angle so it again matches the angle of the bushing at the driver's side of the track bar.
Tera was wrong if they said a non-angled track bar relocation bracket will work after having installed a CV driveshaft.