Sound. If you can't see how the games evolving mate as younger, more progressive coaches enter the game, no amount of explaining will help here. I hesitate to put Chelsea in with with the top two given they are more falling back toward the pack, but de Gea wouldn't fit in at any the top three clubs currently in the PL for example. And that's not to say de Gea isn't still a very good goalkeeper. He is. But it''s no coincidence those clubs are managed by the newer breed of coach with different ideas on the game. We wouldn't have been anywhere near winning all 4 trophies with your goalie in our nets as our whole system would collapse with his lack of ability to sweep up and use his feet.
Given the evolution of football right now, if you're a young goalkeeper starting out in the game that can't play with his feet now, your career is going to be extremely limited unless that trend in coaching philosophies changes.That can't be denied.
On the last line, they never have had any business in any era of football. To a general point, which you aren't doing here, it always amuses the living P out of me when people say x is a great shot stopper ..... Well, yeah, that's his F job! That's a given and the very basic requirement. If you can't stop shots, you're on the wrong profession. It's everything else that separates 'just A N Other goalkeeper' from the rest.