IIRC they did leave part of the clip in the original release but it wasn't made explicity clear that the little girl on the train was Lois. In the Special Edition, the little girl tells her mom that she just saw this really fast guy running past and her mom says something like, "Lois Lane, how often have I told you not to let your imagination run away with you?" (I don't recall what exactly she said, but she addresses Lois by name.)
