I tend to agree with this comment. As a former amateur keeper myself, I would have no interest in "competing" for the solitary position. You either make me your number one or I'll get a game elsewhere. It's not that I was petulant or arrogant - it's that goalkeeper is a unique position where you are trusted or you are not. EVERY goalkeeper will make mistakes that cost goals. It is inevitable. There is no safety net for the keeper, unlike pretty much every other position on the pitch. Similarly, there is no other position to play the keeper who loses out in the "competition". He cannot be moved to full back, into midfield, or up front like an outfield player can.
The number 2 is purely back-up in case of injury. He accepts his role as the subservient replacement. Think Raymond van der Gouw. The number 1 must have complete faith from his manager and team-mates, because, yes, he will blunder. But if he's good enough, these mistakes will be accepted as hazards of the job by grateful team-mates. Think Peter Schmeichel. I've never seen a keeper as vaunted as he was make as many crass blunders as he did - but that was what he was and they were accepted as the price worth paying for his undoubted brilliance.
Jordan Pickford won't really benefit from a "competition". He's either good enough or he isn't. Right now, he's fallen into that nether region where we cannot honestly give a clear answer to that question. I still think he's got the talent. I've seen enough to know a good keeper when I see one - and he has all the attributes...except maturity. That can be gained with time and application. The worry is he will blunder in a critical match, like the upcoming derby, and will enter a spiral of ridicule and self-doubt which will make his status untenable. I know from experience that keepers build an aura. Make a sequence of great saves and forwards fear you while your team mates grow in confidence as you give them that precious commodity of security. You, literally, "save" your team and they love you for it. I have played against some super amateur strikers in my time and if I could make a couple of really good saves against them, they would then start "accounting" for my presence by aiming at the narrowest angle inside the post when they went through one-on-one. To avoid me, they would aim for that ever-narrowing target. Much of the time that would be enough for them to miss. The ball would hit the post or go wide. If they were unconcerned by me, they would score simply by slotting into a wider target. Basically, by making a few big saves, forwards consider the keeper "good" and reduce their own shooting options. That's an aura. I'd save none of those shots - but they'd go wide...
By the same token, when a keeper blunders, he is a pariah, undermining everything everyone is trying to achieve.
Pickford has a huge derby coming up. It could be career defining. This is a huge concern. I can't say right now if he will make it, but I still think he can. He just needs to make sure his next blunder is not in the derby...