I've seen much worse UIs. Not bad enough to really annoy me at all.
"It's better to go into a corner slow and come out fast than it is to go into a corner fast and come out dead."
Sir Sterling Moss
"An honorable Peace is and always was my first wish! I can take no delight in the effusion of
human Blood; but, if this War should continue, I wish to have the most active part in it."
John Paul Jones, letter to Gouverneur Morris, Sept 2, 1782
the slot selection screen is just a pure nightmare, just imagine how long it will take to setup fire teams and make sure every took the proper slot/class with the current UI . BOOOOOHH ... arma1 UI was not perfect but far beter, it was clear had separation between fireteams and was much more readable.