This is still a beta version, apparantly. The FAQ has info on this. They claim to be workining on a different style of drafting. One that would allow only 1 team to get a congressman, and for teams to make trades etc.

So yes, right now we can all get points from the same guy, but unless we pick all 16 the same, there should still be decent variety. And since you can only change your lineup on weekends, a "grab whatever guy the leader is using" strategy would always leave you one step behind.