It is not about the replacement, as before any news of the replacement broke, fans were delighted just to be rid of Mignolet.
Mignolet has been a good keeper for us. Yes he made mistakes, howlers as some call them, but name a keeper who hasn't?
When Karius came in, everyone claimed he was an upgrade too, but time proved that Mignolet was indeed the better keeper. Only time will tell yet again with Adrian..