Yes, the U.S. Education System needs more standardizing to make certain each child gets quality education. Leaving it up to the states will likely result in some kids falling behind. Some people misunderstand standardized education. It would help keep separation of church and state. There are schools not allowing Theory of Evolution to be taught . Standardized education can still be customized.
Unless school districts are paid for from federal taxes, the control of a school district's curriculum should remain with whoever foots the bill for the school. If local property taxes pay for a school, then control should remain localized to the municipality in which the school serves. Whoever pays for the school controls the curricular decisions.