Ya, kinda and it is a pretty funny answer. Jack uses a slightly different process called the Lincoln county process. Basically, they filter it through charcoal made from maple wood.
That still meets the requirements for Bourbon, but they wanted to have their own “Tennessee whiskey” definition that includes the Lincoln process. Although, I don’t know who else uses it other than them and Dickle.
So, ya, bourbon subset that doesn’t want to be called bourbon because it’s Tennessee whiskey. Lol.
Wholesome AF right here.