Well-said, Natalie! From a railwayman's view point, the question is less about appearance and more about functionality, although most of my colleagues agree that they are ugly brutes...
We are interested to see how they perform in traffic, and hope that they won't sit down on the Lickey, in the event that FLHH decide to run unassisted trains that way...
As regards nicknames, in my corner of the industry, nicknames for people are common, hardware does get called names, but not necessarily polite ones!