not any* team, some teams for sure could beat lower level franchise teams for sure but thats not a sign of a "broken game" just that the gap between low level franchising to high level challengers is not large (which is a good thing)
any team from challengers can beat any random tier 1 team is just wrong. The bottom of the leagues can be beaten by top of challengers mabye. We will see if thats true at the end of the year. But to say any team from challengers your baiting.