He isn’t even in the top 3 for the position right now. He might not be in four or five seasons either. If he goes to Mexico, he might be first or second choice in 3-4 seasons. He plays a position where really, one healthy, fit keeper will likely play the spot for 6-7+ years.
The others are much different as you need a bunch of field players, and a keeper? Eh, not so much. Maybe if he was the best in the pool. But he isn’t.
Jermaine Jones was a CL playing midfielder for a big club in Germany, who walked into the midfield for the US for basically close to a decade. He also was likely never playing for Germany any large amount.
John Brooks, Chandler and Johnson are all in similar situations of not being in the top choice for German sides, and then getting real playing time for the Americans with a switch. Of those, only really John Brooks is still a factor. Johnson could be, but he’s aging out, and behind a number of players. They all play a part, and the US was lucky to get them, but none makes the difference. Honestly, if that’s where the US is in five years, to where they’re begging for scraps from Germany or Mexico or whomever, they haven’t progressed in development to where they want to be. It will basically say they’re close to a decade and a half ago.
At this point, with all the young talent that’s coming through, they should be an attractive choice for players who can cut it. Those who can’t can go elsewhere.