I think this could have happened in any aircraft. I'm sure many of us have been surprised by aircraft taxying well ahead of us which we thought we would clear once they turned away. Once an aircraft turns away from you it is very easy to 'forget' about it, especially if you have been taxying behind it for quite a while at constant speed. If however, that aircraft slows down in the turn, as many aircraft do, then suddenly you are seconds away from contact.
I am not saying that's what happened here though, just an observation.