The Live ATC archive sounds like the controller said “taxi to holding position Charlie 5”. With no explicit “hold short runway 34R” there no transcripts yet, and we don’t know what the coast guard confirmation response was to the command, but the tower command seems ambiguous at best. It’s pretty hard to pick out but the tower call is at about 15:10 in this archive https://archive.liveatc.net/rjtt/RJTT-Twr-TCA-Jan-02-2024-0830Z.mp3

LOL I think your right. I did some basic investigating https://photos.app.goo.gl/jRb2rLgmhtp1EECC8