I think Steph didn't want to make a huge scene, pulling people over trying to get into an alliance, etc. why she is still "new" at camp. BUT, now she knows she is on the chopping block she will fight REALLY hard this week to stay on. Personally I would love to see her and Tom go to the finish. I think he was great last night trying to get those guys to change their minds about Steph. I think at this stage of the game when someone thinks unselfishly.... speaks so much of their character.
Also, why this game so different from any other I have watched is that this is the first few times that this group of people have gone to tribal council. So, before last week, there was no maneuvering, private talks, lying, etc. I think that makes a HUGE impact on the game.