User blog comment:Derax-Pagani/Chapter 509: Kagura vs. Larcade Review/@comment-3285005-20161108025138/@comment-29693708-20161111210431

Franmalth stated that Natsu, lucy and Happy's attempt to hold on to their souls wasn't working; besides even if it was working the FT members would be defenceless while holding in their souls, which would give the TC's all the time they needed to kill them. Even if that is a limitation of soul steal no member of FT is strong enough to exploit it and it would only apply if the soul was eaten (Merscylla only encountered difficulty when she ate Escanor's soul; Additionally sunshine is a holy attribute magic and demons are weak to holy magic so it isn't surprising she got serious indigestion). PIS stands for: plot induced stupidity, which is when events in a story contradict a character's normal capabilities for the purpose of the plot. Examples include: a generally competent, intelligent villain doing something stupid like not killing the hero immediately when he has the chance, and that allows the hero to win; a character forgetting they have an ability that would allow them to win easily or avoid getting hurt eg Sting and Rogue are able to access their dragon force at will. Yet outside of their fight with Natsu and Gajeel, they never use it, even when they are getting their butts kicked and are in mortal peril. Or Juvia's water body not being activated to save her from baby dragon lasers and Gray getting killed as a result.