User blog comment:AndrewBrauer/Everything Wrong With Brawl in the Family in 6 Minutes Or Less (CinemaSins parody)/@comment-31789809-20170607123234/@comment-31563773-20170607154443

Because Epsilon, you forget that the writer made Lincoln dumber than usual in this episode. He did things that in all aspects he should've known better. You don't tell secret insults about another person, especially when the person who made the insult is in the same room. Also, he didn't ask about the protocol because he A. didn't care about it, or B. didn't think much of it until it started messing with his daily activities. He spent the entire episode trying to get the house back in order because of this, and in my knowledge, the reason the protocol was never brought up til now is because it was made recently, but of course, being it's called SISTER Fight Protocol, the girls didn't think to tell Lincoln about it.

I've studied that episode front to back for my 'Sister-phobia' story and came to the conclusion that ff he REALLY knew about the protocol since the beginning, none of what happened in those first 7 minutes would've occurred and he would've just gone along with it. You cannot say he knew from the get go based off one scene that happened the next day because it's already been clear when the episode began that Lincoln was unaware of what was going on. Ending scenes can be important, but in this case, it wasn't because this was after the fact things got a lot worse.