Originally Posted by
wereotter
Square had to program something in to occur for both these scenarios, but not every outcome needs to be always usable or a good skill to use. Some are just there because they have to be in order not to soft lock a job if those skills are attempted to be used. Tsubame Geshi had to have an outcome programmed for every possible use case if the trigger for making it available was first using iajutsu, and doesn't mean that programmed outcome needs to always be something good or viable, but just that something had to sit in the code to be executed when that trigger is met.