This more complex view of phase interaction is more applicable to the real-world scenarios we encounter as musicians and producers. You might be struggling to record a drum kit with multiple mics and losing that precious oomph in the process. Your studio monitors could start sounding a bit odd, because each side is interfering destructively with the other while their sound travels through the air. You may find that a certain parallel processing hack or sample replacement makes your sound thinner rather than awesome-er.
While you certainly want to stay true to your own artistic style and write songs that are not a carbon copy of the next big thing in your genre, you also don’t want to misread your audience. For example, fans of John Mayer may have latched onto your recent acoustic singer/songwriter-esque release, but they may jump ship when they hear the synth heavy alt-rock that you’ve been crafting.