I guess I am going to go in defense of Finn here. haha I'm not sure that I actually liked this episode as a whole. It seemed ..I don't know. Not that I think the way Finn went about it was wrong, but I've seen so much about this whole thing already.
Bullying is bullying. To be quite frank, I am over the way Santana treats people. It's constant. And, yes, I have been the target of someone like Santana so I can relate to the way Finn feels. You can only be pushed so far. But, I also don't think in doing what he did that he was trying to be malicious.
I feel awful Santana was outed that way, but ..allowing Finn to take full blame seems sort of wrong to me.
Just had to say my piece since it seems everyone is sort of on a Finn rampage right now!