Kudos on capturing the gist of this vexing decision.
Financially speaking, it's almost guaranteed that paying your mortgage off faster than required will cost you more than paying it on schedule (see e.g., https://medium.com/financial-strategy/why-prepaying-your-mortgage-is-almost-always-a-terrible-idea-88fa87977d77).
Psychologically speaking, owning your home free and clear has a definite allure, especially for people who hate debt. For someone who's willing to forgo coming out ahead financially, and is willing to take on higher short- and medium-term risk of losing their home to foreclosure in return for zero such risk in the long term, this is the way to go.