You may want to listen to the recording again. There were numerous times that the pilot, the female one, said that they were on 23L. The male said 23L and then 23R. She also said what she was looking at for signage and they gave a description of how they got to where they were. The controller was Expecting to hear one thing and didn't catch what they were actually saying. Towards the end, the pilots did NOT listen to control instructions very well and had to continually be given amended directions for taxi.
Major errors on both parts.
For all you pilots out there, especially those that fly the CRJs and E145s, here's a recent mind blower: E145 departs, climbing to 3000. Vfr traffic opposite direction @ 3500. Traffic is passed as follows: XXX145, zzz approach radar contact, traffic 12 o'clock, 6 miles, opposite direction cessna at 3500, maintain 3000. He states "traffic in sight". Told "Roger, maintain visual separation with cessna, climb and maintain 13 thousand." Cessna is told about tfc, he advises in sight. 30 seconds later, XXX145 says, "Hey approach! We just got an RA about that traffic!" Me "You mean the one you reported in sight and were told to maintain a visual with?!" Him" Yeah, he was coming right at us!" Me "That's pretty much what opposite direction means".
You can't make this stuff up...