Please answer my original point.
I'll give it a go... but it's a truly horrible shout. You see, the main criteria for a top keeper is not simply height, it's agility. Now the two combined can be a truly wonderful thing (de Gea), but it's certainly not the be all and end all. In fact it could be argued that by being taller Jordan Pickford would be heavier than he is, and if that is the case it's going to require a damn site more energy and strength to re position himself in the case of a deflection (Robles being a prime example). That's physics.
Now, to truly piss all over your parade... How tall do you think Neville Southall is? Bearing in mind that he's one of the greatest 'keepers to have ever played the game. I'll give you a hint... it's the same as JP.