I read what you posted and gave you justifications on why its titled that way. Its not rooted on fighting but more on the activity of the ID prisoners which are highlighted in the chapter. In a chapter that is centered on a war scenario there is little that minor characters can do besides fight random characters, unless the author himself changes it. Following that logic its not a waste of a title.
lets just all agree that it should be called Lust 7
but seriously, the whole chapter is about Croc, Iva, Buggy and prisoners. And even though LUffy did break in, he was a Prisoner at some point too. Why the bitching, is a title really that important. I never care what it is
quick:
what was last weeks title without looking?
what was your favorite chapters title?
what the coolest title of any chapter?
i could name none