I think that is exactly what he has done. Clear Mignolet is finished.I think the goal keeper situation is getting to Klopp. He should just decide now on his number 1 for the rest of the season, and see it through.
Saw this posted on fb, not sure how genuine it is, but sounds real:
Simon Mignolet: "10 days ago, after the game against Burnley, I had a conversation with Klopp."
“In the Christmas period we had rotated again and I felt that that was not a healthy situation for a keeper."
"Klopp then told me when Sunday was confirmed before and after the match, but of course I'm not happy with that, but no heavy words have come afterwards."
"Klopp told me that honestly and personally in that interview, of course I am not satisfied with that, but I always have to respect the trainer's decision."
“After everything that has happened this season, I know where I stand and the situation has become clearer.”
He added: “Of course I also have to think about my own future, the only thing I can do is focus on the training and do my best, I'm 30 years old and the World Cup is coming in. This situation can not last too long, that's clear. I can not say more about it."
EDIT - just noticed it posted in the Mignolet thread. Sorry for repeating