Tbf in the entire history of the PL there's only been about 7 keepers to have made their debut post 92 (because that's when football started of course) and gone on to make 50 PL appearances for the club they were an academy graduate for.
It is insanely rare and difficult to do, probably the hardest thing in football. The only keeper in the past 10 years to have done it is Robert Sanchez
Caoimhín Kelleher did it over the weekend.