You sound like me not, otoh!
So I guess I should sound like you in this strange mirror-land. I don't think it's a sign he won't be able to make it at EPL level. That's not to say he definitely will make it of course - Southampton previously spent €20m or so on Angus Gunn from Man City, he flopped quite badly, and five years later he's a solid Championship keeper.
But he's 21. Time is on his side.
Would he have been better off as Man City's #2 or 3? Would he have been Man City's #2 or 3? Backup keeper seems unlikely based on his performances this season; Man City would surely have wanted someone more ready for the Premier League? Third choice keeper is nothing. I still think he made the right move. But maybe leaving was the right move and Southampton were the wrong club, so if they were the only permanent option then maybe another loan or trying to make third choice at City were the right move after all. It's not black and white, as you say.
But I think it's good that there seems to be a more rounded view of him of late, one which doesn't pump him up as a world beater all the time but acknowledges he's making mistakes and has a lot to learn. Even on this thread there's posts which say he doesn't make the same mistake twice or that Southampton's poor defensive record is because of the defenders not the keeper (though xG stats, and I know I know, dispute that and
say he's conceded about 15 more than an average keeper would have. It's a lot), and
there's a marked difference in reaction when, say, Kelleher conceded two soft goals against Latvia (although I don't think he could have done much about the deflection) and when Bazunu conceded two soft goals against Armenia. I've said it before, but it's created a divide on here unlike any other two players I can remember and I don't know why.
He'll be grand if we take a more balanced view of things I think. Ditto Kelleher. Let them fight it out and we can get back to worrying about whether we'll have any wingbacks yet by the time Coleman hits 40.
(Also, I never realised Bazunu's mother was Irish. Same as Idah I think?)