I didn't say he was the world goalkeeper in the league, that was another poster. You said he was top 5 so I challenged you to name the 15 clubs that would replace their current goalkeeper with him which for some reason you are refusing to do. I'm intrigued to hear your list, genuinely.
By the way, the statistics certainly don't back up that he's a top 5 goalkeeper in the league. You cannot be statistically the worst goalkeeper in the entire league at preventing opportunities and be considered one of the top 5 goalkeepers in that league, regardless of how good you shot stopping is perceived to be, because the reality is that if you did your job properly in the first place, you wouldn't have half the shots to save. The statistics show that he had an unsustainably high shot stopping level in the first half of last season - alongside his embarrassingly poor stats relating to crossing, sweeping and distribution - and in the second half of the season his shot stopping level was one of the worst in the league (circa -4 PSxG IIRC).
If you wish to delve further into the statistics going back to the three seasons previous to last, his PSxG levels were +0.1, +2.1 & +0.1, so as average as they come in terms of shot stopping, which when considered that he offers nothing whatsoever in terms of shot prevention, is not pretty reading at all. So over the past 4 seasons, he has statistically performed to the level required for a goal-line-goalkeeper of his style for half a season. On what planet are 15 (or even 10) clubs swapping their goalkeepers for him?