UT is probably one of the most simple system out there. It is easier to install and remove than square taper. It's only constraint is tight tolerances for the bb shell but this is no different than any of the new press fit standards.
facing the bb is directly in campagnolo's instructions yet rouge mechanic doesn't discuss it. In addition, the wave washer has nothing to do with lateral movement. The drive side cup and clip controls lateral movement and the wave washer controls preload. Finally, the system was designed for a little movement to prevent side load on the bearings. After doing several installs it is clear RM doesn't understand the system he claims to have fixed.
all of that said, square taper cartridge bottom brackets are better protected from the elements and are less prone to miss alignment issues. A ST chorus or record bb will last nearly forever.