I doubt that many school officials or politicians today know about the influences of the Prussian school system on e.g. the United States school system, or would guess that their present systems bear features deliberately designed to stunt intellectual growth.

I suspect that they mostly see the system that they were themselves educated in as normal by default, and only think to question the appropriateness of features that are specifically brought to their attention, and then only contemplate changing them in ways that are politically practical and advantageous from their positions. Expecting them to try and design and implement a school system that best meets their stated goals is like expecting a person to specify to a genie exactly how they want their mother removed from a burning building so as to save her life. The problem and its solution space simply doesn't fall within the realms that they're inclined to actually think about.