It’s a good point re the defence though. As with all things, it’s not black and white. He’s a decent keeper who has had good spells, both personally, and behind an excellent defence. He’s just had a poor season, which may well be partly down to his mobility being effected by the injury.
But equally, was the defence playing well because Forster was there? Let's not forget the upturn in defensive record came about when Forster came back, and the stark contrast in defensive performances compared to Stekelenberg.