yea thought so too... it would have also been a great story without Mines trauma.
but i stillreally really love this story!!!
it was i guess just for the 1 moment on the rooftop, so our angel could use the right words to stop and make kunieda reflect / understand.
Well, he does say that he didn't think his trauma was still there or that it was that bad. And since the trigger isn't something he would face often, so I don't think he would mention it if he doesn't know it even exists.
i agree, it had absolutely no point or effect on the plot at all, completely unnecessary!
Now thinking about it Mine-sensei's trauma was kinda unnecessary as he 1.) didn't bring it up till the end & never even told the details to anyone...2.) it got solved way too eaisily and 3.) is triggered by the words 'you betrayed me' so I don't think he gets reminded of it that often unless he's going around betraying ppl all the time