No you didn't bring up a debate, you said that we haven't said anything about the match-up when we've covered a lot of things,
Look with bowser you have a better ledge game period and a lot of bowsers game revolves in fortress cancelling ledge trixies, and again once you get a ganon off the edge he's dead no matter what unless your brain dead.
Ganon can't just U-air a bowser because with DI you go up and can fortress over him, bowser has a pretty versatile recovery considering if you DI high enough you can just DI and then bowser bomb, or just fortress over him.
Is it a hard match-up yes, is it winnable, most certainly, and it may even be completely even or in bowsers favor, kills at 20 percent anyone?