A wise old check Captain told me on my Left seat qualification, boy if you hit something, whether your on the taxi line or not, you still hit something and it's your fault. Sage words.
In the past a B747 in Cardiff being marshalled into parking position that carved thru the terminal but stopping short of an I-beam. First incident/accident in a 40 year career for that Captain and he stopped because the S/O opened that roof hatch, saw the wingtip in the Terminal and yelled STOP! Marshaller hadn't heard or considered wingtip gain.
I am sure the pilots are embarrassed, however we can all sympathize with how close we all have come to contacting something whilst moving metal on the ground and didn't know it, as we had missed.