EA set the price ranges.

There are more silvers with more than 10k, like:

https://www.futbin.com/18/player/2395/Bryan%20Dabo/

https://www.futbin.com/18/player/2501/Pione%20Sisto/

A few more too.

EA can also change the ranges when they want. Last year they would increase the max prices of some needed for SBCs (Belgians IIRC) because they were extinct at their normal max.