Kasper does this weird thing when trying to save shots where he tries to scoop it away rather than just parrying it. You can see it perfectly for Stuttgart's third goal. It just adds in needless risk of miss timing it and having the ball go straight through you, which is exactly what happens.
I can't think of any other goalkeeper than does it. It's like he's tying to make a showreel save every time rather than just stopping it.
Should call it a day I think before it gets much worse.