User blog comment:Xilinoc/Ch. 569 (You've been hit by / You've been struck by / Senbonzakura~)/@comment-1332195-20140219203358/@comment-5398287-20140220062210

Actually, she did release it with the command, but the translator thought it was something else.

Aside from that, releasing one's sword with only the name isn't indicative of Bankai; releasing one's sword without the incantation or the name, however, is.