Not sure about the arguing over this, LOL!
I do know that my newest bass went through this Winter w/o any oil on it & it's just fine.
So, there are no plans of putting oil on it.
My fret board(s) tend to get a bit gunky over time, so I use it every once in awhile to wipe down the entire guitar after cleaning the fret board (and usually adding new strings). Whatever people want to do, or not, is up to them and their preferences -- but, I've never had any issues using the Jasco Lemon Oil on various guitars.