It could have been exclusive to Shane, but who knows if it would have succeeded since it would be his first big endeavor.
I remember XFL failed because it was a clusterfukk. I don’t remember hearing much about it being fixed.
The XFL failed because the quality of play & product was terrible. But it did have the stink that games were fixed because of Vince McMahon. I think he somewhat learned his lesson after it & decided to stick with wrestling. I say somewhat because that moron did try to relaunch the league again in his senile years.